HomeMy WebLinkAboutDRAFT - Iowa City Historic Preservation HandbookIowa City Historic Preservation Commission
Iowa City Historic Preservation Handbook
A resource for historic Iowa City
Adopted: DRAFT
Contains guidelines for the historic
review of properties in historic and
conservation districts and historic
landmarks; an explanation of the
historic preservation process and
regulations; and information about best
practices for historic property owners.
Iowa City Historic Preservation Handbook
Table of Contents
1.0
Historic Preservation and Conservation in Iowa City-----------------------------------------
3
1.1
"Why should a community like Iowa City care about historic preservation?"-------------
3
1.2
The Iowa City Historic Preservation Commission -------------------------------------
3
1.3
Districts and Landmarks-----------------------------------------------------------
4
1.4
Classification of Properties in Districts----------------------------------------------.
4
1.5
Historic Designation Process-------------------------------------------------------
6
2.0
Historic Review--------------------------------------------------------------------------
7
2.1
When is Historic Review Required?-------------------------------------------------
7
2.2
Historic Review Process-----------------------------------------------------------
8
2.3
Application for Historic Review-----------------------------------------------------
9
2.4
Certificates of No Material Effect---------------------------------------------------.
9
2.5
Minor Review, Pre -Approved Items and Certificates of Appropriateness----------------
9
2.6
Intermediate Review and Certificates of Appropriateness-----------------------------
10
2.7
Major Review and Certificates of Appropriateness------------------------------------
10
2.8
Certificate of Economic Hardship ---------------------------------------------------
11
2.9
Appeals--------------------------------------------------------------------------
11
3.0
About
the Guidelines for Historic Preservation----------------------------------------------
12
3.1
Iowa City Guidelines---------------------------------------------------------------
12
3.2
Exceptions to the Iowa City Guidelines ----------------------------------------------
13
3.3
Additional Historic Preservation Guidelines------------------------------------------
14
3.4
Building Code and Zoning Ordinances----------------------------------------------
15
4.0
Iowa
City Guidelines for Alterations-------------------------------------------------------- 16
4.1
Balustrades and Handrails---------------------------------------------------------
16
4.2
Chimneys------------------------------------------------------------------------
18
4.3
Doors ----------------------------------------------------------------------------
18
4.4
Energy Efficiency-----------------------------------------------------------------
20
4.5
Foundations----------------------------------------------------------------------
22
4.6
Gutters and Downspouts-----------------------------------------------------------
23
4.7
Mass and Rooflines---------------------------------------------------------------
24
4.8
Masonry --------------------------------------------------------------------------
26
4.9
Paint and Color-------------------------------------------------------------------
27
4.10
Porches --------------------------------------------------------------------------
28
4.11
Siding ----------------------------------------------------------------------------
30
4.12
Site and Landscaping-------------------------------------------------------------
32
4.13
Windows-------------------------------------------------------------------------33
4.14
Wood----------------------------------------------------------------------------36
5.0
Iowa City Guidelines for Additions---------------------------------------------------------
38
5.1
Expansion of Building Footprint-----------------------------------------------------
38
5.2
Decks and Ramps ----------------------------------------------------------------
43
6.0
Iowa City Guidelines for New Construction -------------------------------------------------
44
6.1
New Primary Structures-----------------------------------------------------------
44
6.2
New Outbuildings-----------------------------------------------------------------
48
7.0
Iowa City Guidelines for Demolition--------------------------------------------------------
50
7.1
Demolition of Whole Structures or Significant Features-------------------------------
50
7.2
Prevention of Demolition by Neglect------------------------------------------------
51
Iowa City Historic Preservation Handbook
8.0
Neighborhood District Guidelines--------------------------------------------------------
52
8.1 Longfellow Neighborhood--------------------------------------------------------
52
8.2 College Hill Neighborhood--------------------------------------------------------
54
8.3 Woodlawn Historic District-------------------------------------------------------
55
8.4 Northside Neighborhood---------------------------------------------------------
56
9.0
Design Guidelines for Multi -Family Buildings----------------------------------------------
57
9.1 Site Elements-------------------------------------------------------------------
57
9.2 Architectural Elements-----------------------------------------------------------
58
10.0
The Secretary of the Interior's Standards for Rehabilitation---------------------------------
63
11.0
Title 14: Iowa City Zoning Code----------------------------------------------------------
64
11.1 Chapter 2, Article B - Multi -Family Residential Zones -------------------------------
64
11.2 Chapter 3, Article B - Historic District and Conservation District Overlay--------------
64
11.3 Chapter 7, Article A - Boards and Commissions------------------------------------
65
11.4 Chapter 8, Article E - Historic Preservation Commission Approval Procedures--------
65
11.5 Chapter 9, Article B - Historic Preservation Definitions------------------------------
65
12.0
Residential Architectural Styles of Iowa City----------------------------------------------
66
12.1 American Foursquare------------------------------------------------------------
66
12.2 Colonial Revival-----------------------------------------------------------------
67
12.3 Craftsman----------------------------------------------------------------------
68
12.4 Craftsman Bungalow-------------------------------------------------------------
69
12.5 Eclectic-------------------------------------------------------------------------
70
12.6 Italianate------------------------------------------------------------------------
71
12.7 Period Revival Cottages and Houses----------------------------------------------
72
12.8 Prairie School-------------------------------------------------------------------
73
12.9 Queen Anne--------------------------------------------------------------------
74
12.10 Vernacular----------------------------------------------------------------------
75
13.0
Landmark Properties and Districts-------------------------------------------------------
76
13.1 Local Historic Landmarks--------------------------------------------------------
76
13.2 Johnson County Historic Properties-----------------------------------------------
78
13.3 Historic and Conservation Districts ------------------------------------------------
79
14.0
Historic and Conservation Districts Description and History---------------------------------
80
14.1 Longfellow Neighborhood Districts ------------------------------------------------
80
14.2 College Hill Neighborhood Districts -----------------------------------------------
82
14.3 Woodlawn Historic District-------------------------------------------------------
83
14.4 Northside Neighborhood Districts-------------------------------------------------
84
15.0
Historic and Conservation Districts-------------------------------------------------------
86
16.0
Longfellow Neighborhood Districts-------------------------------------------------------
87
17.0
College Hill Neighborhood Districts------------------------------------------------------
92
18.0
Woodlawn Historic District--------------------------------------------------------------
94
19.0
Northside Neighborhood Districts--------------------------------------------------------
95
A.0
Appendices----------------------------------------------------------------------------
97
A.1 Definitions----------------------------------------------------------------------
97
A.2 Architectural Terms--------------------------------------------------------------
99
A.3 Historic Preservation Documents -------------------------------------------------
102
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Iowa City Historic Preservation Handbook
1.0 Historic Preservation and Conservation in Iowa City
1.1 "Why should a community like Iowa City care about historic
preservation?"
"The. simple answer is that conserving old buildings and neighborhoods makes a good community
better. Iowa City is blessed with a collection of fine, well -maintained older neighborhoods and
individual landmarks which are recognized and appreciated by the entire community. Historic
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preservation has the potential to enhance the quality of life and economic well-being of current and
future residents. "
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Marlys Svendsen
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Iowa City Historic Preservation Plan
In 2008, the Iowa City City Council adopted the Iowa City Historic Preservation Plan that was
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prepared by architectural historian Marlys Svendsen. The plan carefully and thoughtfully evaluated
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Iowa City's historic buildings and neighborhoods and set forth a plan of action for their
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stewardship. Historic neighborhoods and buildings are protected by the designation of historic
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districts, conservation districts and historic landmarks. Designation provides for the careful
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management of these resources by the Iowa City Historic Preservation Commission through the
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historic review process. The purpose of historic review is to preserve or conserve historic
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architectural resources by discouraging alterations that either destroy the unique characteristics of
a building or alter the character of historic neighborhoods.
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1.2 The Iowa City Historic Preservation Commission
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The Iowa City Historic Preservation Commission was created by local ordinance in December
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1982. Its mission statement as described in the Iowa City Historic Preservation Plan is "To identify,
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protect, and preserve the community's historic resources in order to enhance the quality of life and
economic well-being of current and future generations." Its members are citizen volunteers
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appointed by the City Council. Many of the members reside in historic districts and have expertise `
in fields related to historic preservation.
The Purpose of the Historic Preservation Commission is to:
1. Promote the educational, cultural, economic and general welfare of the public through the
protection, enhancement and perpetuation of historic districts and historic and cultural
landmarks located in the City;
2. Safeguard the City's historic, aesthetic and cultural heritage by preserving districts, historic
landmarks and properties of historical, architectural and cultural significance;
3. Stabilize and improve property values by conserving historic properties;
4. Foster civic pride in the legacy of beauty and achievements of the past;
5. Protect and enhance the City's attractions to tourists and visitors and thereby support and
stimulate business;
6. Strengthen the economy of the City; and
7. Promote the use of districts of historic and cultural significance as sites for the education,
pleasure and welfare of the people of the City.
The Powers and Duties of the Historic Preservation Commission:
1. The Commission is authorized to conduct studies for the identification and designation of
"conservation districts", "historic districts" and "historic landmarks". The Commission may
proceed at its own initiative or upon a petition from any person, group or association.
2. The Commission reviews and acts upon all applications for Certificates of Appropriateness.
Iowa City Historic Preservation Handbook
3. The Commission shall further the efforts of historic preservation in the City by making
recommendations to the City Council and City commissions and boards on preservation issues
when appropriate, by encouraging the protection and enhancement of structures with
historical, architectural or cultural value, and by encouraging persons and organizations to
become involved in preservation activities.
1.3 Districts and Landmarks
3 Historic and conservation districts, and historic landmarks, are designated by ordinance by the
0 Iowa City City Council with recommendations from the Historic Preservation Commission, the
c State Historical Society of Iowa, and the Planning and Zoning Commission. Recommendations for
the historic designation of districts and properties are also received from professional architectural
historians following an intensive survey and evaluation of a neighborhood's historic properties and
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resources.
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N Historic Districts
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v Historic districts are geographically cohesive areas with significant concentrations of buildings and
c other resources that possess a high degree of historic integrity. Historic districts are typically first
M nominated to and listed on the National Register of Historic Places, and then designated as local
0 historic districts. Designation as a local district provides the Historic Preservation Commission with
the authority to review changes to properties that may affect the historic character of the property
and the district. The overall character of a historic district must convey a distinct sense of time and
place.
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a Conservation Districts
o Conservation districts are neighborhoods that appear similar to historic districts in character.
N However, because they have fewer properties that retain a high degree of historic integrity or
= contribute to a distinct sense of time and place within the neighborhood, they do not qualify as
historic districts based on State Code. Because they are still considered worthy of protection, City
c Council may designate these neighborhoods for historic conservation.
Iowa City Historic Landmarks
Historic landmarks are buildings that are individually significant for their architectural and/or
cultural merits. Like historic districts, these properties are typically listed on the National Register
of Historic Places, or are eligible for listing on the National Register.
1.4 Classification of Properties in Districts
Properties in conservation and historic districts are classified based on their historic and
architectural significance and integrity. Because neighborhoods change over time, these districts
typically have some structures that are not historic or that have been severely altered. Buildings in
historic or conservation districts may range from outstanding historic landmarks to architecturally
incompatible, modern structures. Depending on the classification of a property, certain exceptions
to the guidelines or financial incentives may be applicable.
To determine the classification of a specific property in a historic or conservation district, refer to
the Table of Contents to locate the appropriate district map that indicates the property's
classification. To determine if a property has been designated a historic landmark, see section
13.0 Historic Landmarks.
Contributing and Noncontributing Properties
When districts are evaluated and nominated for preservation and conservation, individual
properties are classified as either contributing or noncontributing to the historic character of the
proposed district.
Contributing Properties
In historic districts, to be classified as a contributing property the primary building must (1) have an
architectural style and character that is clearly evident and (2) have been constructed during the
Iowa City Historic Preservation Handbook
district's period of significance and relate to a significant historic context in the neighborhood's
history. The period of significance and the historic context(s) for each district are determined by
professional consultants prior to designation. Contributing properties in historic districts may be
eligible for Federal and State tax incentives for substantial rehabilitation.
Conservation districts tend to exhibit a greater variety of building styles from different time
periods and are less culturally cohesive, so their historic contexts are more loosely defined. o
The primary determining factors in classifying a property in a conservation district are (1) the
historic integrity of the primary building and (2) the age of the primary building, which typically =
must be at least 50 years old at the time a district is designated. VV
Noncontributing and Non -historic Properties
Properties that are not classified as contributing are classified as noncontributing.
Noncontributing properties have a primary building that has been significantly altered or that is
non -historic. Non -historic buildings are buildings constructed after a district's period of
significance or were less than 50 years old at the time the district was designated. Refer to
Section 14.0 for information on Iowa City's Historic and Conservation Districts.
These properties are NOT exempt from historic preservation regulations, but exceptions to the
guidelines are applicable. The rehabilitation of noncontributing historic buildings is encouraged.
The demolition of existing non -historic buildings and construction of new, more architecturally
compatible buildings is allowed.
During the process of preparing the survey and evaluation for each historic neighborhood and,
for historic districts, the National Register of Historic Places nomination, each property is
visually inspected and historically researched by a professional architectural historian. The
Commission uses this information to determine the classification of each property. However,
the Commission may vote to change the classification of a property under the following
conditions:
1. Additional information is discovered that documents it has greater cultural significance than
originally determined.
2. It is determined that the original research and inspection did not conclusively or accurately
document the architectural or historic fabric of the property.
3. A property has been substantially altered since it was originally classified.
4. A Property has reached the fifty-year threshold for determining historical significance.
Periodic surveys will be conducted to re-evaluate the integrity of all the buildings that have
changed and a report will be submitted for Commission consideration to reclassify such
properties. An owner may also submit a letter to the Preservation Planner requesting re-
evaluation, if he or she feels that their property has been incorrectly classified. The
Preservation Planner will submit the request, along with a report and recommendation, to the
Commission for a determination.
Landmarks and Key Properties
Landmarks are properties that are individually significant because of their architectural quality,
integrity and historic or cultural significance. Iowa City has over 40 local historic landmarks that
are subject to the historic preservation regulations. Properties classified as key are either
landmarks or are eligible for designation as landmarks. Key properties are subject to the same
historic preservation guidelines as contributing buildings in historic districts. Key properties and
landmarks may be eligible for Federal and State tax incentives for substantial rehabilitation.
See section 13.0 Historic Landmarks for a complete list of landmarks. Key properties are
illustrated on the district maps in sections 14.0 through 17.0. For a list of properties located
outside existing districts that are eligible for landmark designation, contact the Preservation
Planner.
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Iowa City Historic Preservation Handbook
1.5 Historic Designation Process
** Public notification printed in
newspaper
Historic Districts and Landmarks are designated by rezoning a property or area to Historic District Overlay (OHD)
Conservation Districts are designated by rezoning an area to Conservation District Overly (OCD)
Iowa City Historic Preservation Handbook
2.0 Historic Review
The historic preservation guidelines contained in this handbook will be used by the Historic
Preservation Commission to determine if a proposed change to a landmark or property in a district
is compatible with the historic character of the district and property. The intent of the historic N
review process is: C
• To ensure that changes to landmarks and properties in districts do not substantially alter or
destroy the defining architectural character of the building, site or neighborhood.
• To provide property owners, contractors and consultants with technical assistance and
alternatives to ensure that proposed projects conform with the historic preservation guidelines.
2.1 When is Historic Review Required?
Historic review by the Commission is required for all construction projects that require a regulated permit,
and change the exterior features of any property in a historic or conservation district, or any historic
landmark. The proposed project must be approved by the Preservation Planner, Preservation Planner and
Chair, or the full Commission according to the level of review required before a building permit will be issued
by Housing and Inspection Services. Examples of common projects that require a regulated permit and
historic review are:
• Application or reapplication of new
siding.
• Construction of decks and ramps.
• Replacement or addition of windows.
(including sash replacement).
• Adding skylights.
• Demolition of a garage or other
outbuilding.
• Construction of new dormers.
• Porch construction, reconstruction or
replacement.
• Removal of porches, trim, brackets,
chimneys, dormers or other defining
architectural features.
• Construction of Additions.
• Construction of a new garage.
• Reapplication of roof shingles on
commercial and multi -family buildings
NOTE: The application of siding, window replacement, and demolition of portions of a building
require a building permit for properties within districts and landmarks. For properties that are not
within a historic or conservation district, and that have not been designated landmarks, these
actions do not require a permit.
Examples of common projects that may not require a regulated permit and need not be reviewed
by the Commission are:
• Exterior painting.
• Window repair (excluding sash
replacement).
• Construction of fences that are less than
6 feet high (4 feet high in front yard).
• Installation of new storm windows.
• Construction of accessory structures,
such as garden sheds, less than 144
square feet in area.
• Replacement of external gutters and
downspouts.
A complete list of work exempt from permit can be found in Amendments to: International
Residential Code, International Building Code, which is available through Housing and Inspection
Services.
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Iowa City Historic Preservation Handbook
2.2 Historic Review Process
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The Commission strongly recommends meeting
with the Preservation Planner prior to submitting
an application.
An application may be obtained from the Planning
Department or on the City's website at
www.icgov.org/HistoricPreservation.
The Preservation Planner will determine the type
of Historic Review required. Examples of projects
covered by review types can be found in sections
Applications for landmark properties or properties
within Historic Districts may be appealed to City Coun-
cil.
Applications for properties within Conservation Districts
may be appealed to the Board of Adjustment.
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Iowa City Historic Preservation Handbook
2.3 Application for Historic Review
An application for historic review must be submitted to the Preservation Planner. The application
should include dimensioned drawings, sketches, photographs, text, product samples, or other
exhibits that accurately portray the work to be done. The Commission or Preservation Planner may
request additional information if the application cannot be fairly evaluated as submitted. A pre -
application conference with the Preservation Planner is recommended to help ensure that a
proposed project will comply with the guidelines. Application forms may be obtained from the
Planning and Community Development Department, Housing and Inspection Services, or on the
web at www.icgov.org/HistoricPreservation.
Once the application is received, the Preservation Planner will make a preliminary determination
regarding the appropriate level of review. The various levels of review — detailed below — ensure
expeditious handling of applications and the use of the full Commission's skills and expertise when
necessary. The criteria for determining the type of review include the effect on the appearance of
the significant architectural features, materials and processes proposed, compliance with
Guidelines, the scope and type of the project, and the significance of the property the proposed
project involves, among other considerations.
2.4 Certificates of No Material Effect
The Preservation Planner and the Commission Chair or the Chair's designee may issue a
Certificate of No Material Effect if the Preservation Planner's preliminary review reveals the
proposed work will not alter the appearance of significant architectural features and review by the
full Commission is not required. The Certificate of No Material Effect will be issued to the owner
and/or contractor, and will be filed with Housing and Inspection Services and the City Clerk.
Generally, projects consisting only of repair work or replacement will be issued Certificates of No
Material Effect.
2.5 Minor Review, Pre -Approved Items and Certificates of Appropriateness
The minor review process is utilized for the most routine project types that have in the past
garnered Commission consensus. In order to expedite the historic review process, the
Preservation Planner will review these applications independently to verify that proposals comply
fully with the Guidelines, require no exceptions to the guidelines, contain no problematic elements,
and involve only materials, processes, or work which have been pre -approved by the full
Commission. (Contact the Preservation Planner for a list of projects that have been pre -
approved).
A Certificate of Appropriateness will be issued to the owner and/or contractor for projects that
satisfy the minor review requirements, and will be filed with Housing and Inspection Services and
the City Clerk. If the project does not meet the requirements for a Certificate of Appropriateness
under minor review, the applicant will be advised on corrective measures in order to meet the
minor review requirements, or the application will be forwarded to undergo the intermediate or full
review. The applicant may also request the application be forwarded to the full Commission for
review.
Pre -Approved Items
The alterations listed below qualify for a minor review. These alterations are ones that
meet the guidelines and have been approved by the Commission to be applicable to most
structures in historic and conservation districts. Staff approval may be given for:
* Window replacement of certain types * Handrails
* Siding replacement * Deck construction
The list of "pre -approved" items may expand as new products are introduced into the market and
new products are brought before the Commission. Please contact the preservation planner at
356-5243 to discuss your project.
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Iowa City Historic Preservation Handbook
2.6 Intermediate Review and Certificates of Appropriateness
An intermediate review is required for all applications except those involving landmark properties
and contributing properties in historic districts (which require a major review), and projects which
do not qualify for a Certificate of No Material Effect or a minor review (because they will alter the
exterior appearance of the structure, or because the project requires the use of materials or
processes which have not been pre -approved).
The intermediate review is conducted by the Preservation Planner and the Commission Chair or
the Chair's designee. Applications which comply fully with the Guidelines, require no exceptions to
the Guidelines, and contain no problematic elements will be issued a Certificate of
Appropriateness, and will be filed with Housing and Inspection Services and the City Clerk.
Applicants are encouraged to continue working with the Preservation Planner until areas of the
application identified as problematic are sufficiently altered. The applicant may also request the
application be forwarded to the full Commission for review. The Preservation Planner and/or the
Commission Chair or Chair's designee may also recommend projects undergo full review if an
abbreviated review is seen as inappropriate given the scope and type of project proposed.
Examples of types of projects that qualify for Intermediate Review:
• Alterations: All alterations except changes in window type, pattern or dimension, relocations of
door openings and addition of dormers. See section 4.0 Iowa City Guidelines for Alterations
for a listing of project types that qualify as alterations.
• Additions: Decks located behind the primary structure.
• New construction: New outbuildings, provided they are located behind the rear plane of an
existing primary structure.
• Demolition: Non -historic outbuildings and non -historic features of a primary building.
Minor revisions to a previously approved Certificate of Appropriateness may also be eligible for
intermediate review by Preservation Planner and Chair.
2.7 Major Review and Certificates of Appropriateness
A major review is required for applications involving landmark properties and contributing
properties in historic districts provided the proposed project does not qualify for a Certificate of No
material Effect or a minor review. These applications will be reviewed by the Preservation Planner
or the Historic Review Subcommittee, which is composed of three members of the Historic
Preservation Commission. The Preservation Planner or the Subcommittee will make
recommendations to the Historic Preservation Commission and a quorum of the Commission will
consider the application at its next regularly scheduled meeting. If a majority of the Commission
votes to approve the application, a Certificate of Appropriateness will be issued to the owner and/
or contractor, and will be filed with Housing and Inspection Services and the City Clerk. Similarly, if
the application is denied, a Resolution of Denial will be issued.
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Iowa City Historic Preservation Handbook
2.8 Certificate of Economic Hardship
After receiving written notification from the Commission of the Resolution of Denial, the owner of
record may apply for a Certificate of Economic Hardship, if he or she believes the commission's
decision would result in economic hardship to the extent that the property in question cannot yield
a reasonable return. To apply for a Certificate of Economic Hardship, a written letter stating case,
and all supporting materials, must be filed with the Department of Planning and Community
Development. A public hearing will be held by the Commission within sixty days of the receipt of
the application and all supporting materials, which will result in the approval or denial of the
Certificate of Economic Hardship. The Commission will issue a written decision setting forth the
factual basis for the decision. If the Commission finds that unreasonable economic hardship
exists, a Certificate of Economic Hardship will be issued, specifying the authorized material
changes.
The review and approval procedures for a Certificate of Economic Hardship are set forth in Article
14-8E of the Iowa City Zoning Code, Historic Preservation Commission Approval Procedures. The
applicant bears the burden of proof and must support each of the approval criteria by a
preponderance of the evidence.
A. The property in question cannot yield a reasonable return if required to comply with the
requirements and standards specified in this Article. It is not sufficient to show that the
potential return will be reduced as a result of these regulations, but rather it must be
demonstrated that the resulting reduction would be near confiscation
B. The owner's situation is unique or peculiar to the property in question, and the situation
is not shared with other landowners in the area nor due to general conditions in the
neighborhood
C. The hardship is not of the property owner's or applicant's own making.
2.9 Appeals
Applicants may appeal decisions of the Commission to the City Council for landmarks and
properties in historic districts, and to the Board of Adjustment for properties in conservation
districts. The Certificate of Appropriateness, or the Resolution of Denial, which states the reason
for the decision, will be filed with the City Clerk within five days of the decision. The applicant has
10 business days from the time the Resolution of Denial or Certificate of Appropriateness is filed
with the Clerk to file a letter with the City Clerk requesting an appeal. The City Council or Board of
Adjustment will determine if the decision of the Historic Preservation Commission was arbitrary or
capricious, but neither the -Council nor the Board has the authority to override a decision by the
Commission if it is determined that it was not arbitrary or capricious.
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Iowa City Historic Preservation Handbook
3.0 About the Guidelines for Historic Preservation
The purpose of the historic preservation guidelines is to:
° . Provide comprehensive design guidelines for construction projects to landmarks and
° properties within each district.
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• Provide property owners with design criteria that will be the basis for approving or denying
Certificates of Appropriateness.
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• Identify the defining characteristics of each individual historic or conservation district.
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° The Preservation Planner is available to answer any questions, assist an owner or contractor with
their project, and provide additional preservation information.
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a) 3.1 Iowa City Guidelines
These guidelines were written by the Iowa City Historic Preservation Commission to address
specifically the historic preservation issues in Iowa City and to provide more detailed guidance to
a) property owners and builders as they design their construction projects. The guidelines are based
on The Secretary of the Interior's Standards for Rehabilitation, which can be found in section 10.0.
The Iowa City Guidelines are the guidelines that will be used to evaluate most projects. If there are
Q issues that are not addressed in these guidelines, then the Historic Preservation Commission will
use The Secretary of the Interior's Standards for Rehabilitation and the Guidelines for
Rehabilitating Historic Buildings, which are guidelines for interpreting the standards.
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ri Typically, there are four types of projects that modify the exterior of landmarks or properties within
districts. The Iowa City Guidelines are divided into four sections that correspond to these project
types. These are:
4.0Iowa City Guidelines for Alterations
5.0Iowa City Guidelines for Additions
6.0 Iowa City Guidelines for New Construction
7.0 Iowa City Guidelines for Demolition
Alterations
Alterations are modifications to a site or to the exterior of a building that do not increase the size of
the building's footprint. Most maintenance and remodeling projects such as siding repair,
reconstruction or repair of historic porches, adding dormers to convert an attic space to a living
space, and replacing doors and windows are considered alterations. These projects will be
evaluated using 4.0 Iowa City Guidelines for Alterations.
Additions
Construction that results in a larger building footprint, increases the building's overall height, or
adds an attached structure to a building is considered as an addition. Additions include
construction of a new room, porch, or deck. These projects will be evaluated using 5.0 Iowa City
Guidelines for Additions as well as 8.0 Neighborhood District Guidelines.
Setback Additions
A setback addition is constructed behind an existing building, opposite the street facade, and is set
back eight inches or more from the side walls. The roof of a setback addition can be no higher
than the roof of the existing building. This results in an addition that is narrower and no taller than
the building to which it is attached, and is therefore not highly visible from the street. Setback
additions are encouraged because they have less impact on a historic building and district.
Therefore, the Commission may allow some flexibility when reviewing such additions Setback
additions will be evaluated using 5.0 Iowa City Guidelines for Additions as well as 8.0
Neighborhood District Guidelines.
Iowa City Historic Preservation Handbook
New Construction
3.2
Although most lots in conservation and historic districts are developed, there may be occasions
where a new primary building or outbuilding is constructed. Outbuildings include garages, garden
sheds, gazebos and other accessory structures that require a building permit. Under most
circumstances, non -historic buildings and structures may be demolished and the lot redeveloped.
However, the new building and the demolition must be approved by the Historic Preservation
Commission before any building or demolition permits are issued. These projects will be evaluated
using 6.0 Iowa City Guidelines for New Construction, 8.0 Neighborhood District Guidelines and if
applicable 7.0 Iowa City Guidelines for Demolition.
Demolition
Demolition involves the complete removal of a building or a portion of a building. Removal of
dormers, decorative trim, porches, balusters, chimneys and other significant features requires a
building permit for demolition, and therefore historic review. Demolition projects will be evaluated
using 7.0 Iowa City Guidelines for Demolition and 8.0 Neighborhood District Guidelines. If a
demolition permit is sought in order to erect a new structure, the new building and the demolition
must be approved by the Historic Preservation Commission before any building or demolition
permits are issued. These projects will be evaluated using 6.0 Iowa City Guidelines for New
Construction, 7.0 Iowa City Guidelines for Demolition, and 8.0 Neighborhood District Guidelines.
Exceptions to the Iowa City Guidelines
In writing the historic preservation guidelines, the Historic Preservation Commission has made
every effort to clarify the criteria for historic review. However, not every situation can be
anticipated. Situations requiring exceptions to the Iowa City Guidelines will be considered by the
full Commission under major review unless the project conforms to the documented exceptions
listed in the guidelines, in which case the project may be approved by the Preservation Planner or
Preservation Planner and Chair.
The Commission is charged with interpreting and applying the guidelines in a fair and consistent
manner, but is afforded flexibility when reviewing applications in order to arrive at historically and
architecturally appropriate solutions in cases where a proposed construction project does not
significantly affect the architectural character of a historic structure.
The Commission may consider granting the following types of exceptions:
Documented Exceptions
A documented exception exists where the Commission has encountered and anticipated
acceptable alternative methods and materials to the guidelines. When these methods and
materials have found consensus with the Commission, they have been incorporated into the
guidelines. The nature of these exceptions is to acknowledge materials or project types that are
appropriate only in limited circumstances, the particular circumstances of which have been clearly
defined and explicitly listed at the end of each applicable section of the guidelines.
Non -Historic Structures
A number of the documented exceptions pertain to non -historic structures. Because the historic
preservation guidelines are intended primarily to protect the character and integrity of historic
properties and districts, exceptions have been crafted to accommodate non -historic structures
within the districts. While the great majority of properties located in historic and conservation
districts are historic properties, and were constructed in or before 1945, the Historic Preservation
Commission may grant exceptions to the Iowa City Guidelines for the relatively small number of
properties that are classified as non -historic properties and were constructed after the period of
significance of a district.
Specific criteria exist for evaluating non -historic structures. In order to qualify for an exception, the
proposed change to the exterior of a non -historic property must comply with the following criteria:
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1. The project will not further detract from the historic character of the district.
2. The project will not create a false historic character.
3. Alterations and new additions will be compatible with the style and character of the non -historic
structure. New Constructions will be compatible with the style and character of the district.
Uncommon Situations
During the course of historic review, it may be revealed that elements of the application warrant
special consideration. When this occurs, alternative design solutions to the Iowa City Guidelines
or the Neighborhood District Guidelines may be considered by the Historic Preservation
Commission. The intent in considering alternative designs is to allow architectural flexibility in
exceptional circumstances such as non -compliant structures, irregular lots, and projects which
satisfy the intent of the guidelines as interpreted by the Commission. The Commission may find
guidance in section 3.4 Additional Historic Preservation Guidelines. Alternatively, the Commission
may advise the applicant regarding appropriate solutions or accept the applicants' proposal with or
without amendments. When approving a project requiring an exception, the Commission shall
identify the guideline(s) for which the exception is being made, and the rationale for the exception.
Guidelines Silent/Unclear
Because the guidelines were written by the Iowa City Historic Preservation Commission to address
o historic preservation issues in Iowa City, certain topics may not be covered extensively or at all
-0 within the guidelines. Moreover, historic preservation is constantly evolving. New technologies,
Q materials and practices continue to penetrate the field and require individual treatment. To decide
on applications involving issues not covered sufficiently within the guidelines, the Commission may
C� find guidance in 3.4 Additional Historic Preservation Guidelines. When ruling on an application
CO utilizing criteria other than those found within the guidelines, the Commission will identify the
criteria and rationale for the record. The appropriateness of use for any new products or materials
will also be clearly stated during historic review.
The guidelines leave to the discretion of the Commission the particular calculus used to determine
the appropriateness of various projects. These considerations are largely determined by the
historical integrity of the structure, the various elements which would be impacted, the scope of
work, the materials used, etc., which vary from project to project.
3.3 Additional Historic Preservation Guidelines
Neighborhood District Guidelines
The size and location of a primary building on a site are some of the defining characteristics of his-
toric and conservation districts. The size of buildings, lots and yards, as well as the architectural
character of the buildings varies by district. Section 8.0 Neighborhood District Guidelines deals
specifically with site, scale, structure location, and architectural style for properties within individual
historic or conservation districts.
The Secretary of the Interior's Standards for Rehabilitation
The Secretary of the Interior's Standards for Rehabilitation and the Guidelines for Rehabilitating
Historic Buildings are national standards for historic preservation. The Secretary of the Interior de-
fines rehabilitation as "the process of returning a property to a state of utility, through repair or al-
teration, which makes possible an efficient contemporary use while preserving those portions and
features of the property which are significant to its historic, architectural, and cultural value." The
goals of the Standards can be summarized as follows:
1. Identify and preserve those materials and features that are important in defining the building's
historic character.
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Iowa City Historic Preservation Handbook
2. Undertake routine maintenance on historic materials and features. Routine maintenance gen-
erally involves the least amount of work needed to preserve the materials and features of the
building.
3. Repair damaged or deteriorated historic materials and features.
4. Replace severely damaged or deteriorated historic materials and features in kind. `O
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The Iowa City Guidelines are based on the Standards, but they provide more specific guidance.
Occasionally, alterations are proposed to properties that were not anticipated in the Iowa City D
Guidelines. When this occurs, the Historic Preservation Commission will refer to the Standards o
when deciding on a Certificate of Appropriateness. The Standards are located in section 10.0.
Design Guidelines for Multi -Family Buildings CD
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These guidelines are based on Site Development Standards in the Central Planning District of the m
Iowa City Zoning Code and apply to the construction of buildings with three or more dwelling units.
Typically, a new multi -family building would be evaluated by the Staff Design Review Committee. m
3.4 Building Code and Zoning Ordinances
The requirements of the building code and the zoning ordinance must be met in addition to the
requirements of the Iowa City Guidelines. For certain requirements such as mass, scale, size, site
considerations, and setbacks from the street, the Iowa City Guidelines may be more stringent than
the building code or the zoning ordinance. The Historic Preservation Commission does NOT
review projects for compliance with the building code or zoning ordinance. Please consult with
Housing and Inspection Services to ensure the project complies with these regulations. Sections
of the Zoning Code that refer to historic preservation are detailed in Section 11.0 Title 14: Iowa
City Zoning Code.
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Iowa City Historic Preservation Handbook
4.0 Iowa City Guidelines for Alterations
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Most maintenance and remodeling projects such as siding repair, porch reconstruction or repair,
and changes to the doors and windows are considered alterations. Alterations to both contributing
and noncontributing properties, as well as landmarks, should be done in a manner that is
appropriate to the style and age of the building, as well as its neighborhood context. The historic
character and integrity of older buildings should be maintained by repairing historic components to
the extent feasible and using traditional materials and techniques.
Balustrades and Handrails
Balustrades (guardrails) and handrails serve as both
porches, balconies, and steps. For historic properties,
architectural style, but not at the expense of safety.
Recommended:
Historic Balustrades and Handrails
• Repairing historic balustrades and
railings.
o Replacing badly deteriorated
IT components with ones that match the
historic components in design and
material.
New Balustrades and Handrails
• Constructing or replacing missing
balustrades by using historic
photographs or by choosing a style that
is consistent with the architectural style
of the building.
• Installing turned balusters in balustrades
that have an actual diameter of 2 inches
or greater, or square spindles that are 1-
1/2 inches or greater in width.
• Installing top and foot rails that are at
least 2 inches in thickness.
• On buildings where a spindled
balustrade would be most consistent with
decorative and functional elements on
the design should be consistent with the
the architectural style, spacing spindles
so that the balustrade is at least 40%
solid. Spindles must be spaced so that
no gap between the spindles exceeds 4
inches as required by the building code.
Providing handrails on porch steps as
required by the building code. Handrails
should match the historic balustrade
height on the porch unless otherwise
specified by the building code. The
handrail must have a continuous
member that can be easily gripped. The
handrail should either match the porch
balustrade or be made of round steel
pipe.
Providing balustrades on the porch as
required by the building code. When the
porch floor is more than 30 inches above
grade, the balustrade must be 42 inches
high except for single-family and duplex
structures where it may be as low as 36
inches.
Sloping the top and foot rails slightly to
allow water to be shed from these
surfaces and help prevent deterioration
of these members.
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Disallowed:
Historic Balustrades and Handrails
• Removing historic balustrades or railings.
• Covering the historic balustrades or
railings with materials such as siding.
Exception
Iowa City Historic Preservation Handbook
New Balustrades and Handrails
• Using unpainted treated wood for
elements that would have been painted
in the historic application.
• Using wrought iron elements unless they o
were part of the historic design.
In order to provide flexibility for certain changes and certain properties, the Commission has
documented a number of exceptions to the Iowa City Guidelines. Projects requiring the
exceptions corresponding to the property type listed below may be approved by the Preservation
Planner or Preservation Planner and Chair. Projects requiring exceptions to the guidelines that
are not listed may be considered by the full Commission under major review. The Commission is
afforded flexibility when reviewing applications in order to arrive at historically and architecturally
appropriate solutions in cases where a proposed construction project does not significantly affect
the architectural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find
guidance in the additional guidelines, outlined in section 3.4. When approving a project requiring
an exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
Applies to: Noncontributing Properties in Historic Applies to: Non -Historic Properties in Historic and
Districts
All Properties in Conservation Districts
New Balustrades and Handrails
• On buildings where a spindled
balustrade would be most consistent with
the architectural style, spacing spindles
so that the balustrade is at least 30%
solid.
On buildings where turned spindles
would be most consistent with the
architectural style, installing square
spindles.
Conservation Districts
New Balustrades and Handrails
• Alternative baluster and handrail designs
may be considered.
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4.2 Chimneys
Fireplace chimneys are often a defining architectural feature of historic houses. Chimneys may
have decorative brickwork and often are a distinguishing feature of the roof profile. Therefore,
historic chimneys should be preserved.
4.3
Recommended:
Historic Chimneys
• Adding a flue liner to historic chimneys
for safety reasons.
• Keeping flue caps as inconspicuous as
possible.
• Following the recommendations for
masonry repair in section 4.7 Masonry.
• Repairing and capping unused historic
chimneys in a manner that prevents
vermin from entering the chimney, but
allows air circulation.
New Chimneys
• Using masonry to construct full -height
exterior fireplace chimneys in a manner
that is consistent with the architectural
style of the building.
• Boxing and finishing new chimney pipes
that penetrate the roof with thin brick
veneer or stucco.
Doors
Disallowed:
Historic Chimneys
• Removing prominent chimneys that are
important to the historic architectural
character of the building.
• Plastering over masonry chimneys in
place of proper repair.
• Pointing with mortar that is too hard for
historic, soft brick.
• Using synthetic sealants, adhesives and/
or wraps to repair masonry chimneys.
Exception
For more information on exceptions to the
Iowa City Guidelines, please refer to section
3.2.
The original size and shape of door openings should be maintained. Many historic entrance doors
are of panel -type construction or solid frames with glass lights in the upper part of the door.
Historic storm doors are often wood doors with removable sashes. These historic door styles
should be used when it is necessary to replace original doors. Historic garage doors often possess
distinctive design features and should be retained if possible.
Recommended:
Garage Doors
• Retaining and repairing historic garage
doors where practical.
• Installing new garage doors that
resemble the styles of historic ones, or
installing new garage doors which are
simple in design. Smooth or simple
panel -type doors may be used.
• Adding trim to garage door openings that
matches that of other doors and windows
in the garage.
• Installing two single -car doors instead of
a single door_
Historic Doors
• Repairing historic doors rather than
replacing them.
• Replacing badly deteriorated doors with
new or salvaged doors that are similar in
size, material, style, and appearance.
New Doors
• Installing a wood screen door that
accepts sashes with glass or screen.
• Adding new door openings that are
trimmed to match other doors and
windows in the building.
• Substituting a material in place of wood
for doors and screen doors only if the
18
substitute material retains the style and
appearance of the historic doors and
screen doors. The substitute material
must be durable, accept paint, and be
approved by the Historic Preservation
Commission.
Exception
Iowa City Historic Preservation Handbook
Disallowed:
New Doors
• Installing flush entrance doors or other
modern door styles.
• Installing sliding patio doors if they were
not original to the building or consistent
with the architectural style.
• Installing natural aluminum storm doors.
• Blocking down door openings to
accommodate standard door sizes.
In order to provide flexibility for certain changes and certain properties, the Commission has
documented a number of exceptions to the Iowa City Guidelines. Projects requiring the
exceptions corresponding to the property type listed below may be approved by the Preservation
Planner or Preservation Planner and Chair. Projects requiring exceptions to the guidelines that
are not listed may be considered by the full Commission under major review. The Commission is
afforded flexibility when reviewing applications in order to arrive at historically and architecturally
appropriate solutions in cases where a proposed construction project does not significantly affect
the architectural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find
guidance in the additional guidelines, outlined in section 3.4. When approving a project requiring
an exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
Applies to: Noncontributing and Non -Historic Proper Applies to: Non -Historic Properties in Historic
ties in Historic Districts Districts
All Properties in Conservation Districts All Properties in Conservation Districts
Garage Doors New Doors
Allowing a single door instead of two Sliding patio doors or other modern -style
single -doors. On a case by case basis, doors may be installed on the rear of a
the Commission may allow single garage primary building provided that the
doors for garages not highly visible from openings are trimmed to match the
the street or which mimic the appearance existing doors and/or windows.
of two single -doors.
These traditionally styled doors are appropriate replacements for
many historic homes
These modern style doors are generally poor choices
for historic homes, particularly on the fronts of the
house.
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4.4 Energy Efficiency
Start with an energy audit.
Audits can help pinpoint problem
areas and measure energy
savings. In a historic house, it is
important to hire a professional
who's well acquainted with the
idiosyncrasies of older homes.
The audit should be done in the
late fall or winter and should
include a Blower Door Test. Your
auditor will mount a fan on an
exterior door frame to pull air out
of the house and determine how
airtight the home really is.
Add storm windows.
windows improve
efficiency and personal
for a fraction of the
window replacement.
Decorate for cold -weather
efficiency. Use lined draperies,
working shutters, and insulated
window shades to significantly cut
heat loss.
Check your heating system.
Have your furnace serviced for
maximum efficiency. Bleed
radiators and clean forced -air
registers to ensure proper
operation. Change furnace filters
monthly.
Storm
energy
comfort
cost of
Keep doors airtight
By weather stripping, caulking,
and painting them regularly.
Make sure fireplace dampers,
dryer vents, and bathroom fans
are open only during use. An
open damper can let as much as
eight percent of the heat in your
house escape.
Use light paint colors
For your house's exterior. Lighter
colors reflect heat better than
darker ones
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Insulate ductwork and hot water
pipes travelling through cool
spaces. Caulk holes around mail
chutes, cable television and utility
entrances, and outdoor faucets.
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Iowa City Historic Preservation Handbook
Install a programmable
thermostat to keep your house
warm when you are home, but
cooler when no one's there.
Insulate the attic, basement,
and crawl space.
About 20% of energy costs come
from heat loss in those areas.
Inadequate insulation results in
heat loss, and forces your
furnace to work overtime. Make
certain the attic hatch is as well
insulated as the attic floor.
Restore porches and awnings.
Porches, awnings, and shutters
were intended for shade and
insulation.
Plant trees and other
landscaping. Evergreen trees
on the north and west sides of
your house can block winter
winds, and leafy trees on the
south and west provide shade
from the summer sun. It may be
possible to use old photos to
match the historic landscaping of
your house
Keep original windows intact.
Older windows perform extremely
well when properly maintained.
Don't replace — repair! Now's
the time to seal gaps with caulk,
apply new glazing compound,
replace broken panes, repair
loose wood parts, and install
y weather stripping. You'll reduce
landfill waste and the demand for
vinyl, a non -biodegradable
material that gives off toxic
byproducts when made.
In summer, open the windows
and use fans and dehumidifiers
Which consume less energy than
air-conditioning. Many old
houses were designed with good
cross -ventilation; take advantage
of your home's layout
Reuse old materials, such as
brick, stone, glass, and slate
when making home
improvements. This prevents
these materials from ending up in
the landfill and does not require
the resources to harvest or
produce new materials. Make a
visit to the Salvage Barn at the
Iowa City Landfill to find reusable
materials of every sort.
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Iowa City Historic Preservation Handbook
4.5 Foundations
Foundations provide a base for a building and make a transition from the walls above ground to
the walls or supports below ground. The amount of exposed foundation varies with historic
structures, but is typically 12 to 30 inches. On brick or stone structures the foundation material
may be different in color and texture than the wall material, and the two are often separated by a
belt course of yet another material or pattern. On many occasions correcting all sources of
moisture and other circumstances that may cause damage to the foundation wall and footings is
necessary prior to the repairs. Maintaining a slope away from the foundation to prevent standing
water or drainage toward the foundation is also essential for the long term stability.
Recommended:
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Historic Foundations
• Correcting all sources of moisture and
other circumstances that may cause
damage to the foundation wall and
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• Repairing historic foundations rather than
replacing them.
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• Removing all non -historic materials and
repairing or replacing, if necessary,
foundations with materials that appear
similar to the existing materials in size,
color, texture, composition, and joint
profile.
• Repairing stucco with a mixture that
matches the existing in texture, color,
and composition.
Exception
Retaining the size, shape and location of
historic door openings, window openings,
and storm cellar entrances in the
foundation. If new window wells are
required, the materials used must appear
similar to the existing foundation
material.
Disallowed:
Historic Foundations
Covering exposed brick, stone, and
textured concrete block foundations with
a cement plaster or stucco.
• Raising the adjacent grade at the
foundation to cover what was historically
exposed.
Painting masonry or concrete
foundations that were originally
unpainted.
In order to provide flexibility for certain changes and certain properties, the Commission has
documented a number of exceptions to the Iowa City Guidelines. Projects requiring the
exceptions corresponding to the property type listed below may be approved by the Preservation
Planner or Preservation Planner and Chair. Projects requiring exceptions to the guidelines that
are not listed may be considered by the full Commission under major review. The Commission is
afforded flexibility when reviewing applications in order to arrive at historically and architecturally
appropriate solutions in cases where a proposed construction project does not significantly affect
the architectural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find
guidance in the additional guidelines, outlined in section 3.4. When approving a project requiring
an exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
Applies to: Noncontributing Properties in Historic
Districts
All Properties in Conservation Districts
New Foundations
The Commission may allow use of
concrete or rock -face concrete block for
replacement foundation walls and piers
in place of masonry units that appear
similar to the existing.
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Iowa City Historic Preservation Handbook
4.6 Gutters and Downspouts
Original built-in gutters are important design features of historic buildings. Removing these
requires a building permit and must be approved by the Historic Preservation Commission. A
building permit and Certificate of Appropriateness are not required for replacing external gutters.
Recommended: Covering original built-in gutters and
applying exterior gutters only if the roof
New Downspouts slope at the gutter is not altered. This
• Installing metal downspouts placed can be accomplished with horizontal
vertically near the corners. They should blocking and flashing above the old
be painted to match the background wall gutter.
color.
Original Built -In Gutters Disallowed:
• Repairing original built-in gutters. EPDM Roof Pitch
rubber sheeting is an economical Altering the roof pitch when covering
replacement material for the original tin historic built-in gutters.
flashing.
Exception
In order to provide flexibility for certain changes and certain properties, the Commission has
documented a number of exceptions to the Iowa City Guidelines. Projects requiring the
exceptions corresponding to the property type listed below may be approved by the Preservation
Planner or Preservation Planner and Chair. Projects requiring exceptions to the guidelines that
are not listed may be considered by the full Commission under major review. The Commission is
afforded flexibility when reviewing applications in order to arrive at historically and architecturally
appropriate solutions in cases where a proposed construction project does not significantly affect
the architectural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find
guidance in the additional guidelines, outlined in section 3.4. When approving a project requiring
an exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
Applies to: All Properties
Original Built -In Gutters
• Removal of original built-in gutters
unable to be repaired. On a case by
case basis, the Commission may
consider allowing removal of original
built-in gutters if documentation is
provided to establish evidence of need.
This may include damage to the roof
itself or inability to repair built-in gutters
to proper working condition.
Original Roofline with the built in gutters.
Simply covering the built in gutters does
not allow for adequate roof drainage
Roof Pitch
• Minor changes to the roof pitch to
address drainage concerns. On a case
by case basis, the Commission may
consider allowing minor changes to the
roof pitch if documentation is provided to
establish evidence of need. Work should
be done to ensure other significant
architectural features such as trim and
brackets are not altered.
Modified roofline, built in gutters covered/
removed, a slight slope has been added to
allow for drainage. A slight modification
of the roof pitch at the built in gutter is
allowed to accommodate drainage.
Modified roofline, built in gutters have
been removed and the roofline
straightened. This alters the character
defining flared roof edge and lowers the
cornice of the building. Dramatically
altering the roof pitch at the built in gutter
is not allowed.
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4.7 Mass and Rooflines
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Mass and roof pitch are defining characteristics of historic architectural styles. Most of the roofs in
historic neighborhoods were originally sawn cedar shingles, although standing seam metal was
sometimes applied. The texture of the wood shingles on the steep -pitched roofs was a prominent
feature of historic neighborhoods during the 19th and early 20th centuries. A building permit is not
required for simply replacing shingles and historic review is not required.
Recommended: which they are located should be
Materials consistent with the architectural style.
• Preserving historic trim such as crown
molding, skirt and frieze boards, and
decorative metal.
• Consider unoriginal materials that may
have achieved significance, such as
metal roofs.
• Maintaining metal roofs rather than
replacing.
• Painting metal roofs dark colors, usually
dull red or green, or a natural metallic
silver color.
• Replacing a special historic shingle with
one of a similar style when the old
shingles need replacing. If quality
replacement items cannot be obtained,
metal shingle roofs should be replaced
with a high -quality wood shingle or with
asphalt shingles.
• Using asphalt shingles that resemble the
texture and color of weathered wood
shingles for roofs that had wood shingles
historically.
• Using metal skylights where allowed.
New Dormers
• Designing new dormers to be of a size,
scale and proportion that is consistent
with the architectural style.
• Designing new dormers such that the
face of the dormer is primarily composed
of window area.
• Adding dormers to an existing roof in a
manner that does not significantly alter
the character of the historic building.
• Adding dormers that are in proportion to
the roof's overall size. The width of the
dormers in proportion to the roof on
• Adding dormers that are no closer than 3
feet to an existing gable end or hip. The
intent is to avoid significantly altering the
original roof lines.
• Constructing gabled and hipped dormers
that have roof pitches similar to the pitch
of the main roof.
Original Roofline and Mass
• Preserving the original roof pitches and
spans.
• Preserving the original walls and vertical
corners that define the massing of a
historic building.
Disallowed:
New Dormers
• Adding dormers that are wider than ones
commonly found in the neighborhood or
on buildings of a similar architectural
style.
• Adding dormers that extend above the
existing peak of the roof.
Original Roofline and Mass
• Substantially altering the roof pitch of a
historic building on one or both sides of
the roof to gain headroom below the
rafters.
Not Recommended:
Mechanical Devices
• Installing antennas, vents, solar
collectors, skylights, or other mechanical
devices on prominent street
elevations.
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Iowa City Historic Preservation Handbook
Exception
In order to provide flexibility for certain changes and certain properties, the Commission has
documented a number of exceptions to the Iowa City Guidelines. Projects requiring the
exceptions corresponding to the property type listed below may be approved by the Preservation
Planner or Preservation Planner and Chair. Projects requiring exceptions to the guidelines that
are not listed may be considered by the full Commission under major review. The Commission is
afforded flexibility when reviewing applications in order to arrive at historically and architecturally
appropriate solutions in cases where a proposed construction project does not significantly affect
the architectural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find
guidance in the additional guidelines, outlined in section 3.4. When approving a project requiring
an exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2
Applies to: All properties
Replacement of metal roofs.
On a case by case basis, the
Commission may consider allowing
replacement of metal roofs with an
approved alternative material if
documentation is provided to establish
evidence of need and of efforts to repair
existing damage.
Types of rooflines commonly found in Iowa City
Roof Pitch
Minor changes to the roof pitch to
address drainage concerns. On a case
by case basis, the Commission may
consider allowing minor changes to the
roof pitch if documentation is provided to
establish evidence of need. Work should
be done to ensure other significant
architectural features such as trim and
brackets are not altered.
Flat roof
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4.8Masonry
Masonry is designed to resist weathering without paint or any other protective coating while
retaining an appealing appearance. As such, it is a relatively maintenance -free material. When
there is deterioration of masonry, the single most important step is to locate and repair the cause
of the problem before going to the expense and trouble of repairing the masonry. When repairing
masonry, four important properties should be considered: color, texture, dimension, and hardness
of the masonry units.
Recommended: Cleaning new mortar smears from the
Historic Masonry masonry face with a mild acid designed
• Removing all vines. Vines cause the
for that purpose.
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masonry to retain moisture. Their root-
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• Removing deteriorated mortar by hand.
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Raking the joints with hand tools is less
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likely to damage the masonry. The
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Historic Preservation Commission may,
at its discretion, allow for the use of
electric grinders by a qualified
o
professional to remove mortar.
• Replacing deteriorated masonry units
with ones that appear similar to the
existing masonry units in color, texture
and size, and that have an appropriate
hardness.
Using mortar that is similar in hardness
to the original mortar. A recommended
mix for historic masonry contains 1 part
white Portland cement, 3 parts lime, and
9 parts sand. If necessary, dye may be
added to the new mortar to match the
color of the original mortar. This mix is
suitable for both laying and pointing
masonry walls.
• Making mortar joints that match the
dimensions of the original joints. Historic
mortar joints are often narrower than
those commonly used today.
Cleaning historic masonry using a
natural bristle brush and mild, water -
based detergent. Sometimes a gentle
chemical method may be appropriate,
but only if it does not damage the
masonry.
Disallowed:
Historic Masonry
• Sandblasting, water blasting, or any
other abrasive cleaning method. Blasting
can cause very serious damage by
destroying the protective exterior surface
and exposing the softer interior to rapid
deterioration. This damage cannot be
repaired.
Pointing soft historic masonry with a
strong Portland cement mix or synthetic
caulking compound. Hard mortars will
damage soft historic masonry such as
brick.
• Painting or sealing historic masonry that
has not been painted.
Exception
For more information on exceptions to the
Iowa City Guidelines, please refer to section
3.2.
Flexible Mortar
(Lime)
1 1
Average temperatures Hot (Bricks expand) Cold (Bricks contract)
No movement Mortar compresses Mortar flexes
Inflexible Mortar
(Cement) EI O
1 a
Average temperatures Hot (Bricks expand) Cold (Bricks contract)
No movement Spalding Cracks open up
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Iowa City Historic Preservation Handbook
4.9 Paint and Color
Paint schemes should be simple. Colors should be selected to complement the style and period of
the building. The Iowa City Historic Preservation Commission has literature that recommends
historically appropriate paint colors and schemes. For information please contact the Preservation
Planner. A building permit is not required for painting and historic review is not required, though,
the Commission may include provisions regarding paint and color for certain projects which do 0
require a permit and historic review.
Recommended:
Paint Color
Choosing a color scheme that is
consistent with the architectural style of
the building. Typically, this would be one
color for the body of the building, one or
two colors for the trim, and black or dark
green for the storm sashes. If a
horizontal board delineates the upper
floor of the building, a second color may
be used for the upper floor walls.
Pressure Treated Lumber
• Pressure treated lumber should be
allowed to cure for a period of six months
to one year prior to painting due to high
moisture content
Repainting
Removing loose and peeling paint and
cleaning the surfaces to be painted in
accordance with pertinent State and
Federal guidelines. Practices that help
reduce the potential for the creation of
Color #2
Trim
Color # 1
Wall
lead dust, such as misting surfaces with
water when scraping, are encouraged.
Old paint that is sound and reasonably
c�
smooth should be left in place as a
Z
foundation for the new paint.
G
• Taking all recommended safety
coo
precautions, including using a proper
n
respirator to avoid breathing the fumes orcn
dust from lead -based paint.
o
• Collecting and properly disposing of paint
chips and other waste.
v
• Priming, caulking, and finishing with
high -quality products.
Cn
• Removing any grayed surface of
weathered wood by sanding.
• Treating dry wood with linseed oil and
priming with an oil -based primer.
Windows
• Finishing approved non -wood windows in
a dark color such as black or dark green.
2
Sash
Ily blac
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Not Recommended:
Paint Color
• Choosing bright, obtrusive colors.
• Painting a building entirely white.
Repainting
Dry sanding, sandblasting or using high-
pressure sprayers to remove paint from
masonry or wood.
• Using high heat or open flames for paint
removal.
• Using other methods
potential to create lead
discouraged by
State and Federal
guidelines.
with a high
dust that are
• Using paint strippers containing Proper usage of respiratory
methylene chloride. protection and heat to
prevent the distribution of
4.10 Porches lead dust
Porches are the focus of many historic buildings and help define their overall character. In historic
residential neighborhoods, front porches help to establish a sense of community. Front porches
and sun porches should be preserved for both their architectural and social value.
Recommended:
Historic Porches
• Repairing historic porches and
conserving as much of the historic
material as possible.
Replacing badly deteriorated
components with new ones that match
the historic components in design and
material. Custom fabrication of columns,
brackets, pedestals, and moldings may
be necessary, but many porch
components can be ordered through
lumber yards.
• Using vertical -grained fir porch flooring
for its resistance to weathering.
• Constructing
iiiiiiiuumi
Orthogonal Lattice
28
or replacing missing
balustrades and handrails
using historic photographs
or in a style that is
consistent with both the
building and neighborhood
(See section 4.1
Balustrades and Handrails
for more details).
• Using wood steps
for a wood porch and tile,
brick, or concrete steps for
a masonry porch.
• Leaving exposed
the support piers below the
porch columns. Skirting
must be added to fill the
space below the porch floor and grade if
this space is 24 inches or greater. The
skirt must be located between the porch
piers.
Constructing porch skirting using a 3-6
inch wood frame with slats fastened to
the back of the frame in a vertical or
lattice pattern.
Enclosing only a portion of a front porch
with screens to provide a sitting area that
is to the side of the steps and front
entrance of the house. The screens
should be set behind the columns and
balustrades to preserve the historic
appearance of the porch.
Wood Substitutes
• Substituting a material in place of wood
only if the substitute material retains the
appearance and function of the original
wood. The substitute must be durable,
accept paint, and be approved by the
Historic Preservation Commission.
Disallowed:
Historic Porches
• Removing a historic front porch.
• Changing the original roof pitch. Newer
materials including EPDM rubber
sheeting and heat —sealed asphalt
products make the maintenance of low-
pitched roofs easier than in years past.
• Enclosing front porches or other porches
that are highly visible from the street with
permanent windows and/or walls.
Unique porch guidelines exist for the
Moffitt Cottage National Register Historic
District. In this district traditional front
porches were not used and are not
permitted. Refer to 8.0 Neighborhood
District Guidelines.
New Materials
• Using wrought iron elements unless they
were part of the historic design.
Exception
Iowa City Historic Preservation Handbook
Using unpainted treated wood for
elements that would have been painted
in their historic applications.
• Using precast concrete steps on the front
or side elevation if the steps will be
highly visible from the street. They are o
acceptable on the rear elevation.
Wood Substitutes
• Substituting a
that does nc
function, and
wood.
material in place of wood
retain the appearance,
paintability of the original
In order to provide flexibility for certain changes and certain properties, the Commission has
documented a number of exceptions to the Iowa City Guidelines. Projects requiring the
exceptions corresponding to the property type listed below may be approved by the Preservation
Planner or Preservation Planner and Chair. Projects requiring exceptions to the guidelines that
are not listed may be considered by the full Commission under major review. The Commission is
afforded flexibility when reviewing applications in order to arrive at historically and architecturally
appropriate solutions in cases where a proposed construction project does not significantly affect
the architectural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find
guidance in the additional guidelines, outlined in section 3.4. When approving a project requiring
an exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
Applies to: Noncontributing Properties in Pretreated porch decking or dimensional
Historic Districts lumber may be used for decking
provided the gaps between the
All Properties in Conservation Districts floorboards do not exceed 1/8 inch.
New Materials
Porch floors may be concrete if the floor
is no more than 18 inches above grade.
Porches with floors that are more than 18
inches above grade must be built using
traditional porch construction with wood
joists and wood flooring.
• Porches on rear elevations need not
reproduce historic details.
Roof
Cornice
Column
Baluster
Floor
Skirting
Pier
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4.11 Siding
Wood siding is prevalent throughout the historic neighborhoods in Iowa City. Most often it is plain
clapboard siding with an exposure between 3 and 5 inches; however, it is sometimes tongue and
groove, shiplap, or wall shingle siding. Wood siding along with the trim details and a variety of
paint colors combine to make one of the most important defining characteristics of historic districts.
This display of detail and color is essential to the character of the old neighborhoods, and
therefore siding must be protected by the design guidelines.
The primary threat to the traditional appearance of older neighborhoods has come with the
application of synthetic siding. This has been installed in an effort to avoid periodic painting. While
synthetic siding may last longer than an application of paint, it does deteriorate over time and does
need to be replaced when it fades, cracks, dents, or deteriorates. The application of synthetic
siding covers many architectural details of a building, damages the historic siding and trim, and in
some cases, necessitates the removal of historic elements altogether. For all of the reasons stated
above, the covering of historic properties with synthetic siding is not allowed.
Recommended:
Historic Sidinq
• Repairing historic wood siding and trim.
• Replacing deteriorated sections of wood
siding with new or salvaged wood siding
that matches the historic wood siding.
Removing synthetic siding and repairing
historic wood siding and trim.
Synthetic Siding
• Replacing synthetic siding with siding to
match the original siding of the structure.
• Matching synthetic siding may be used to
repair damage to existing synthetic
siding.
Wood Substitutes
• Substituting a material in place of wood
siding only if the substitute material
Typical Siding Types found in Iowa City
Clapboard siding
Board
I Batten Siding
retains the appearance and function of
the original wood. The substitute material
must be durable, accept paint and be
approved by the Historic Preservation
Commission. In many applications, fiber
cement board is an approved wood
substitute.
Disallowed:
Historic Trim
Removing historic trim pieces such as
door and window trim, skirt and frieze
boards, and corner boards.
Covering historic trim such as door and
window trim, skirt and frieze boards, and
corner boards.
Synthetic Sidinq
• Applying synthetic siding such as
aluminum, vinyl, or false masonry siding.
Staggered edge shingle siding
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Iowa City Historic Preservation Handbook
Exception
In order to provide flexibility for certain changes and certain properties, the Commission has
documented a number of exceptions to the Iowa City Guidelines. Projects requiring the
exceptions corresponding to the property type listed below may be approved by the Preservation
Planner or Preservation Planner and Chair. Projects requiring exceptions to the guidelines that
are not listed may be considered by the full Commission under major review. The Commission is
afforded flexibility when reviewing applications in order to arrive at historically and architecturally
appropriate solutions in cases where a proposed construction project does not significantly affect
the architectural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find
guidance in the additional guidelines, outlined in section 3.4. When approving a project requiring
an exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
Applies to: Non -Historic Properties in Historic exist which prevents the structure from
Districts being considered a contributing structure
Noncontributing and Non -Historic to the district. Otherwise, alterations
Properties in Conservation Districts should be encouraged which will enable
Noncontributing and Non -Historic the property to become contributing to
Outbuildings in Conservation the district.
Districts.
Synthetic Siding May be Considered
Provided the Following Conditions:
Noncontributing and non -historic
structures be evaluated on a case -by -
case basis to determine the architectural
merit of the property under consideration.
Some noncontributing and non -historic
structures were classified according to
an architectural style or construction
period inconsistent with the district, but
nevertheless remain important properties
and worthy of preservation.
For structures
synthetic siding,
the presence of
I
Dutch lap (drop) siding
already possessing
other factors besides
synthetic siding should
Shingle siding
• All sources of moisture that have caused
damage to the structure are corrected
and the damage repaired prior to the
application of the siding.
Historic architectural features such as
window trim, brackets, moldings, rafter
tails, columns, balusters and similar
details are not covered, removed, cut or
otherwise damaged. Unless severely
deteriorated, historic wood siding must
not be removed.
To the extent possible, the synthetic
siding appears similar to the original
wood siding in exposure, texture and
design.
• Trim boards extend in front of the face of
the siding.
Fish scale siding
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Iowa City Historic Preservation Handbook
4.12 Site and Landscaping
Site features and landscaping can contribute significantly to the character of a neighborhood,
streetscape or property. Accommodating parking, site access and other modern outdoor needs
should be done in a discreet manner. To the extent possible, these modern site features should be
located in the backyard and accessed from an alley.
Recommended: Trees, shrubs and other substantial
Disability Access plantings can increase the moisture and
mold at the exterior walls and the roots
• Following the recommendations for can damage foundations.
ramps in 5.2 Decks and Ramps.
ai
Fences
• Installing fences between the street and
a
the front facade that are 3 feet or less in
height.
vDesigning
fences to be similar to historic
fence styles, such as wood picket
o
fences, and wrought iron or metal
—
fences.
o
Painting wood fences.
Parking
• Providing parking behind the primary
structure on a lot where possible. If
parking must be located along the side of
an existing or new primary structure, it
must be set back from the front plane of
the building a minimum of 10 feet and be
screened by a decorative fence,
landscaping, or a combination of a
decorative fence and landscaping, and
approved by the Historic Preservation
Commission.
• Providing a minimum of 5 feet setback
from all property lines for parking areas
of 4 or more spaces
Pedestrian Access
• Providing a sidewalk that connects the
entrance door or porch to the public
sidewalk.
Sidewalks, Streets, and Walls
• Repairing historic brick paving materials
and retaining walls.
Constructing new driveways to be similar
to historic driveways in the
neighborhoods. Typically these
driveways are 8-10 feet in width and may
have only a three foot section for each
track paved, leaving grass in the center
of the drive.
Vegetation
• Removing large trees that are planted
closer than 20 feet to historic buildings
and shrubs planted closer than 5 feet.
Vehicular Access
• Providing vehicular access from an alley
when available. Driveways leading from
the street to garages or parking at the
rear of the property should be one lane in
width, but can be widened toward the
back of the lot to provide access to multi -
stall garages or parking spaces.
Disallowed:
Fences
• Removing historic metal fences.
Parkins
• Providing parking spaces between the
primary structure and the street.
Vehicular Access
• Adding curb cuts and driveways from the
street when access is available from an
alley.
Not Recommended:
Fences
• Installing chain link, wire mesh or rail
fences in locations highly visible from the
street.
Sidewalks, Streets, and Walls
• Replacing historic brick paving with
concrete.
Veaetation
• Removing mature trees, unless tree is
causing damage to a building, is
diseased, or is structurally unsound, as
determined by a professional arborist.
Exception
For more information on exceptions to the
Iowa City Guidelines, please refer to section
3.2.
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Iowa City Historic Preservation Handbook
4.13 Windows
Windows are one of the most important elements that define a building's architectural character.
Important window characteristics and elements include the window type, size, proportion, trim —
lintels, sills, decorative hoods and pediments, pattern of divided -lights, mullions, sash and
decorative glass. Most often, historic windows are double -hung, but casements were occasionally
used. Except for small decorative windows, historic windows are generally considerably taller than
they are wide, and the lower and upper floor windows are often aligned vertically. The
Commission recommends repair before replacement can be considered, and requires
documentation of the extent of deterioration
in order to approve replacement of windows.
Recommended:
Attic Windows Vents Window Air -Condition
Units and Other Similar Openings
• Preserving historic attic windows, their
trim and installing traditional wood vents.
Locating new attic openings in a manner
that is compatible with the historic
window pattern.
• Locating air-conditioning units on a
building elevation which is not highly
visible from the street.
Historic Windows
Preserving the historic windows by
repairing sashes and frames.
Retaining historic window frames and
replacing badly deteriorated sashes with
new sashes that match the historic ones.
New Windows
Adding windows that match the type,
size, sash width, trim, use of dived -lights,
and overall appearance of the historic
windows.
• Adding new windows in a location that is
consistent with the window pattern of the
historic building or buildings of similar
architectural style.
Outbuilding Windows
Windows on outbuildings should be
relatively small and rectangular or
square.
Relocation and Closing Window Openings
• If an opening is to be relocated, it should
not detract from overall fenestration
pattern.
• If an opening is to be closed on a brick
structure, it should be recessed to
express the original opening and lintels
and sills should be maintained. On a
framed structure, appropriate siding that
matches the existing should be used with
its members being placed across and
randomly extended beyond the opening.
Replacement Windows
Replacing badly deteriorated windows
with new ones that match the type, size,
sash width, trim, use of divided -lights,
and overall appearance of the historic
windows. Mullions are significant
features of historic windows that must be
retained.
Using new wood windows and sashes, if
necessary, to replace historic wood
windows and sashes. The use of metal -
clad, solid -wood windows is acceptable.
Replacement windows and trim must
accept paint. In order to maintain the
importance of historic window sashes,
non -wood windows will be finished in a
dark color, preferably black.
Head
Casing
Muntin Bars
Light/pane
Sash
Sill
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IT
Divided -lights may be created with
muntin bars that are adhered to both
sides of the glass, but not with snap -in
muntin bars.
Replacing a bedroom window, if required
for egress by the Building Code, with a
new one that matches the size, trim, use
of divided -lights, and overall appearance
of the previous bedroom window or other
windows in the house.
Storm Windows and Shutters
• Installing traditional wood storm windows
and screens on older buildings. Storms
should fit the opening exactly, without the
use of spacers.
Installing wood -frame combination storm
windows with screens that resemble
traditional wood storm windows. The use
of metal -clad, wood -frame combination
storm windows is acceptable. Storm
windows must accept paint and should
be painted.
Any new shutters should be
proportionate so that they cover the
windows if closed. The shutters should
be compatible with the style of the
historic house and should be Louvered or
paneled wood construction.
Typical window types
Double Hung window
Casement windows
Disallowed:
New and Replacement Windows
• Installing modern types of windows
including sliding, awning, casement, and
bay windows when they were not original
to the building, consistent with the
architectural style, or required for egress.
• Installing metal, vinyl clad or vinyl
windows on primary structures or on
contributing outbuildings when they were
not original to the building.
• Using snap -in muntin bars to achieve
the appearance of divided -lights.
• Introducing new window openings into
primary elevations.
Shutters
• Installing shutters on windows on a
structure that did not historically have
shutters.
34
Awning window
Slider window
Iowa City Historic Preservation Handbook
Exception
In order to provide flexibility for certain changes and certain properties, the Commission has
documented a number of exceptions to the Iowa City Guidelines. Projects requiring the
exceptions corresponding to the property type listed below may be approved by the Preservation
Planner or Preservation Planner and Chair. Projects requiring exceptions to the guidelines that
are not listed may be considered by the full Commission under major review. The Commission is
afforded flexibility when reviewing applications in order to arrive at historically and architecturally
appropriate solutions in cases where a proposed construction project does not significantly affect
the architectural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find
guidance in the additional guidelines, outlined in section 3.4. When approving a project requiring
an exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
Applies to: All Properties
New and Replacement Windows
• Fiberglass windows may be considered
for basement windows with
moisture problems.
• Modern window types may be
considered on a case -by -case basis in
situations where multiple window types
exist on a building.
• Glass block may be considered in
situations where the glass would not be
visible from the street, or where privacy
issues exist.
• Change in window size may be allowed
for egress requirements. The change of
window size should be considered a last
resort.
Applies to: Non -Historic Properties in all Districts.
New and Replacement Windows
• Vinyl or vinyl clad wood windows and
snap -in muntin bars may be considered
for replacement windows provided they
match historical proportions.
Applies to: Noncontributing and Non -Historic
Properties in all Districts.
Outbuilding Windows
• Vinyl or vinyl clad wood windows may be
considered, provided they match
appropriate historical outbuilding window
proportions.
Applies to: Noncontributing and Non -Historic
Properties in Historic Districts
All Properties in Conservation Districts
New and Replacement Windows
• Vinyl or vinyl clad wood windows may be
used for replacement of basement
windows provided the foundation wall is
no more than 18 inches above grade.
• Vinyl or vinyl clad wood windows may be
considered for primary buildings in if
existing windows are vinyl or vinyl clad
wood.
• Vinyl or vinyl clad wood windows may be
considered for additions provided they
match historical proportions.
.A
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Iowa City Historic Preservation Handbook
4.14 Wood
Most of the structures in Iowa City's historic neighborhoods are of wood frame construction and
have wood siding. Many dwellings have wood elements such as trim, windows, doors, porches,
cornices, decorative elements, and pediments. While most wood is relatively inexpensive, durable,
and easy to work with, it must be maintained properly to have a long life.
o
Recommended:
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Deck and Porch Materials
Q
Pressure treated lumber should be
°
allowed to cure for a period of six months
to one year prior to painting due to high
a)
moisture content.
D
Historic Wood
• Repairing historic wood elements rather
U
than replacing them.
M
o
Using epoxy products, such as Wood
Epox and Liquid Wood by Abatron, to
consolidate deteriorated wood
components, and fill or reconstruct
missing wood.
• Duplicating and replacing historic wood
elements when they cannot be repaired.
• Replacing damaged wood components
with new or salvaged wood components
that match the historic ones.
• Monitoring wood surfaces for signs of
excessive water damage, rot, or pest
infestation. Keeping all surfaces primed,
painted and appropriately caulked in
order to prevent wood deterioration.
• Eliminating excessive moisture problems
such as leaky roofs, gutters, and
downspouts. The improper venting of
baths, kitchens, basements, and dryers
may cause moisture problems.
• Removing vegetation that is growing
against the wood elements or siding.
Paint stripped from balusters and
some decay is found
Wood Substitutes
• Substituting a material in place of wood
only if the substitute material retains the
appearance and function of the original
wood. The substitute material must be
durable, accept paint, and be approved
by the Historic Preservation Commission.
• For many applications, fiber cement
board is an approved substitute for
wood.
• MiraTech and similar materials have
been approved for above -grade
applications on a case by case basis.
• Polyethylene/sawdust
materials, such as Trex,
on a case by case basis
Disallowed:
Historic Wood
composite
are appropriate
• Covering original wood siding, soffits and
eave boards with another material such
as vinyl or aluminum siding.
Using destructive and dangerous paint
removal methods such as sandblasting,
water blasting, or burning with a propane
or butane torch.
Removal of historic wood elements such
as trim, porches, cornices, and
decorative elements.
Wood Substitutes
Substituting a material in place of wood
that does not retain the appearance,
function, and paintability of the original
wood.
Small decay holes filled with
epoxy, larger ones replaced with
new wood.
Original balusters are repaired
and repainted retaining the
original material and integrity
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Iowa City Historic Preservation Handbook
Exception
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
Worn Paint, Wood in good condition
Peeling Paint, Wood likely in good condition
Peeling Paint, Wood maybe in bad condition
Peeling Paint, Wood at bottom is rotting
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Iowa City Historic Preservation Handbook
5.0 Iowa City Guidelines for Additions
An addition to a historic house is often required to accommodate an expanding family, home office
or modern lifestyle. These guidelines are for additions that expand the interior living space or
building footprint, as well as for other attached structures such as new porches, decks and ramps.
5.1 Expansion of Building Footprint
When planning an addition that expands the building footprint, consider first how a new exterior
form and roof can be added to the existing house in a manner that is compatible with the design of
the historic building. Often, the desired interior space dictates the location and size of the addition,
and the resulting roofline and form appear awkward and inconsistent with the historic structure.
The Historic Preservation Commission strongly recommends using a design professional to help
evaluate space needs and plan a compatible addition. Additions to structures in districts must also
comply with the guidelines in section 8.0 Neighborhood District Guidelines.
Recommended:
Balustrades and Handrails
Following the guidelines for new
balustrades and handrails in section 4.1
Balustrades and Handrails.
Chimneys
• Constructing new exterior fireplace
chimneys of masonry or stucco if the
chimney is highly visible from the street.
Building Facade
• Unique surface area guidelines exist for
street elevations in the Longfellow
Neighborhood, generally restricting
surface area to no more than 800 square
feet. For Governor, Bowery, and Court
Streets the total surface area of the
street elevation must be no more than
1200 square feet for a new primary
building or for an existing building
including a new addition. For Summit
Street the total surface area of the street
O
� elevation must be no more
than 1500 square feet for a
R _ new primary building or for
an existing building including
a new addition, and no more
than 750 square feet for a
new outbuilding building. For
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Recommended: Additions matching the roof pitch and
type as the original structure. Key horizontal lines, such
as eaves, are carried into the new addition
the Moffitt Cottage National Register
Historic District the street elevation must
be no more than 450 square feet for a
new primary building or an existing
building including a new addition. Refer
to 8.0 Neighborhood District Guidelines.
Unique surface area guidelines exist for
street elevations in the College Hill
Neighborhood, generally restricting
surface area to no more than 1200
square feet. Refer to 8.0 Neighborhood
District Guidelines.
Unique surface are guidelines exist for
street elevations in the Northside
Neighborhood., generally restricting
surface area to no more than 1200
square feet. Refer to 8.0 Neighborhood
District Guidelines.
Building Height and Mass
Unique height and mass guidelines exist
for single-family houses or duplexes in
the Longfellow Neighborhood, restricting
the height to no more than two stories.
For the Summit Street Historic District
single-family houses must have two full
stories in the principal portion of the
building. For the Moffitt Cottage National
Register Historic District single-family
houses must be one story in height.
Refer to 8.0 Neighborhood District
Guidelines.
Unique height and mass guidelines exist
for single-family houses or duplexes in
the College Hill Neighborhood, restricting
the height to no more than two stories in
height. For College Street single-family
houses and duplexes must be two
stories in height. Refer to 8.0
Neighborhood District Guidelines.
38
Iowa City Historic Preservation Handbook
Unique height and mass guidelines exist
for single-family houses or duplexes in
the Northside Neighborhood, restricting
the height to one -and -a -half or two
stories. Refer to 8.0 Neighborhood
District Guidelines.
Design
• Preserving significant historic materials
and features of the original structure
such as decorative windows, brackets,
porches, and trim.
Designing an addition so that it does not
diminish the character of the historic
structure.
• Distinguishing between the historic
structure and the new addition. This may
be accomplished easily by offsetting the
walls of the addition from the walls of the
original structure.
• Matching key horizontal "lines" on the
existing building, such as water table,
eave height, window head height and
band boards, in order to provide
continuity between the addition and the
historic structure.
• Using a palette of materials that is similar
to that used on the historic structure.
• Placing building additions at the rear of a
property, if possible. Additions at or near
the front of an existing building must be
set back at least 18 inches from the front
plane of the historic building, and must
be differentiated by a change in the
roofline or other means.
Doors
• Installing doors in additions that match
the material of historic doors, and have a
similar style and appearance as the
historic doors in the existing building.
• Installing French doors, or doors of a
similar type, in additions where a large
opening is desired.
• Following the guidelines for new doors in
section 4.3 Doors.
Foundations
• Constructing an addition foundation that
appears similar to the historic foundation
in color, texture, unit size, and joint
profile.
Gutters and Downspouts
• Constructing built-in gutters in additions
to historic buildings that have built-in
gutters.
Masonry
When using masonry on an addition,
using new masonry that appears similar
in color, texture, unit size, and joint
profile to the historic masonry.
Mass and Roofline
Constructing additions that are
consistent with the massing and roofline
of the historic building. This requires that
the wall areas and corners, as well as
the roof pitches and spans are all
consistent with the existing building and
have a proportion that is similar to that of
the existing building.
Constructing the roof overhang, soffits
and eaves of the addition so that they
match the roof overhang, soffits and
eaves of the existing building. When the
eaves of an addition intersect the eaves
of the existing building, care should be
taken to assure that the two eaves align
properly. The trim details of a new eave
should match the eave details of the
existing building.
New Porches
Constructing new porches that are
consistent with the historic building or
similar to porches of the same
architectural style.
Constructing new porches that are more
than 18 inches
above grade
using traditional
porch construction
with wood joists
and wood flooring.
Recommended: Connecting additions with a breezeway.
This provides for an easy way to distinguish the original
house from the addition
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Adding skirting to fill the space between
the porch floor and grade if this space is
24 inches or greater. The skirt should be
constructed between the porch piers.
Paint and Color
• Painting additions to match the existing
historic building.
Setbacks
Unique setback guidelines exist for
Summit Street, located within the Summit
Street Historic District and the Longfellow
Neighborhood. On this street the rear
wall of the primary structures must not
extend deeper than 125 feet from the
front street. This restriction preserves
the openness of the rear years. Refer to
8.0 Neighborhood District Guidelines.
Siding
• Applying siding to a new addition that
appears similar in size, shape, texture,
and material to the existing siding on the
historic building.
Windows
• Using windows that are of a similar type,
proportion and divided -light pattern as
those in the original structure.
Following the guidelines for new
windows in section 4.13 Windows.
N', • •
• Constructing additions with materials that
appear similar to the historic siding, trim,
moldings, and other details of the original
building.
Disallowed: Constructing additions that alter the roofline
of the original structure, use a differing roof pitch, or do
not match up key horizontal lines
Disallowed:
Design
• Constructing an addition between the
historic building and the street.
• Leaving large expanses of wall surface
uninterrupted by windows or doors.
• Constructing an addition that is not
distinguishable from the historic building.
• Constructing an addition that expands a
historic house vertically and increases its
overall height. Remodeling an attic space
and adding dormers is acceptable.
Porches
Adding space to a structure by enclosing
a historic front or side porch.
Unique porch guidelines exist for the
Moffitt Cottage National Register Historic
District. In this district traditional front
porches were not used and are not
permitted. Refer to 8.0 Neighborhood
District Guidelines.
Unique setback guidelines exist for the
Summit Street Historic District, located
within the Longfellow Neighborhood. In
this district attached garages are not
allowed. Garages must be located at the
rear of the property whenever possible.
Refer to 8.0 Neighborhood District
Guidelines.
Siding
• Using synthetic siding on an addition
instead of the historic siding type or a
substitute material approved by the
Historic Preservation Commission,
unless an exception is provided by the
Historic Preservation Commission.
Disallowed: Constructing additions between the front of
the house and the street or that alter the historic street
facing elevation
Iowa City Historic Preservation Handbook
Exceptions
In order to provide flexibility for certain changes and certain properties, the Commission has
documented a number of exceptions to the Iowa City Guidelines. Projects requiring the
exceptions corresponding to the property type listed below may be approved by the Preservation
Planner or Preservation Planner and Chair. Projects requiring exceptions to the guidelines that
are not listed may be considered by the full Commission under major review. The Commission is
afforded flexibility when reviewing applications in order to arrive at historically and architecturally
appropriate solutions in cases where a proposed construction project does not significantly affect
the architectural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find
guidance in the additional guidelines, outlined in section 3.4. When approving a project requiring
an exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
Applies to: Setback Additions in Historic Districts traditional porch construction with wood
All Additions in Conservation Districts joists and wood flooring.
Gutters and Downspouts
Additions need not have built-in gutters
unless the new gutters align with the
built-in gutters of the existing building.
For instance, a one-story addition need
not have built-in gutters if it is attached to
a two-story wall.
New Foundations
• For additions to foundations, concrete or
textured concrete block may be used in
place of masonry units that appear
similar to the original masonry.
For additions to foundations, it is
acceptable to match the color of the
original foundation by using paint or
masonry stain rather than matching the
material and appearance of the original
foundation material.
New Masonry
Additions to masonry structures may be
sided with wood. The siding type must be
consistent with the age and architectural
style of the historic building. The trim
must be consistent with both the siding
type and the architectural style of the
building. Any substitute materials must
be durable, accept paint, and be
approved by the Historic Preservation
Commission.
Porches
• Porch floors may be concrete if the floor
is no more than 18 inches above grade.
Porches with floors that are more than 18
inches above grade must be built using
• Pretreated porch decking or dimensional
lumber may be used provided the gaps
between the floorboards do not exceed
1 /8 inch.
• Porches on rear elevations need not
reproduce historic details.
Windows
Modern window types, such as casement
windows, may be used in additions
provided they have overall proportions
comparable to those found on the
historic building, and a similar divided -
light pattern. The windows must be
trimmed to match the historic windows in
the building. The windows may be
installed side -by -side, but they must
have a mullion between them if mullions
were used between windows on the
historic building. Transom -like or half -
round fixed glass units may be used if
they create a traditional -looking window
arrangement consistent with the historic
building style.
N•"
• Window trim, door trim, fascia and frieze
boards, and corner and band boards on
additions must be similar to those on the
historic building. However, other details
of the historic building may be omitted,
simplified, or enhanced on additions as
long as they are compatible with the
existing structure.
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Iowa City Historic Preservation Handbook
Applies to: Noncontributing and Non -Historic
Properties in Conservation Districts
Noncontributing and Non -Historic
Outbuildings in Conservation
Districts
Synthetic Siding May be Considered
Provided the Following Conditions:
Noncontributing and non -historic
structures be evaluated on a case -by -
case basis to determine the architectural
merit of the property under consideration.
Some noncontributing and non -historic
structures were classified according to
an architectural style or construction
period inconsistent with the district, but
nevertheless remain important properties
and worthy of preservation.
• For structures already possessing
synthetic siding, other factors besides
"' the presence of synthetic siding should
exist which prevents the structure from
being considered a contributing structure
to the district. Otherwise, siding for
additions should be encouraged which
will not further degrade the property.
• To the extent possible, the synthetic
siding appears similar to the original
wood siding in exposure, texture and
design.
• Trim boards extend in front of the face of
the siding.
Applies to: Non -Historic Properties in Historic and
Conservation Districts
New Balustrades and Handrails
• Alternative baluster and handrail designs
may be considered.
Disallowed: Constructing additions that are taller than
the original structure or that alter the roofline
42
Disallowed: Constructing an addition that increases the
height of the original structure or alters the roofline
Iowa City Historic Preservation Handbook
5.2 Decks and Ramps
Decks and ramps are features that are not typical to historic structures. They are modern inven-
tions designed to meet the needs of our modern lifestyle and building codes. As such, it is not nec-
essary that they duplicate the details of the building to which they are attached. However, they
should be as unobtrusive as possible. These guidelines shall also be used for multi -family struc- cn
tures.
0
Ramps may be approved that accommodate reasonable access and use by disabled occupants
provided they do not significantly alter or detract from the historic character of the building. The
Historic Preservation Commission will work with applicants to find designs that will accommodate
their needs and that are compatible with the historic character of the building.
Recommended: Locating a new ramp, or as much of the
new ramp as possible, on the side of the
Decks building.
• Locating a new deck on the back of a
primary building, opposite the street -
facing facade and set in from the side
walls at least 8 inches.
• Designing decks so that the size, scale
and location do not detract from the char-
acter of the district's rear yards, if signifi-
cant to the district.
• Attaching decks to the building in a man-
ner that will not damage a historic exte-
rior wall or, other historic materials, or
cause wood siding to deteriorate.
• Following the guidelines in section 4.1
Balustrades and Handrails.
• If creating a screened porch structure,
following the guidelines for porches in
section 5.1 Expansion of Building Foot
print.
Ramps
• Designing ramps so they do not detract
from the historic character of the build-
ing. To the extent possible, the yard
should be graded to create a portion of
the incline of the ramp.
• Incorporating a ramp into a porch.
• Landscaping around a ramp to soften the
visual impact of the structure from the
street.
• Following the guidelines in section 4.1
Balustrades and Handrails.
Disallowed:
Decks
• Constructing a deck between the street
and the street -facing facade if it detracts
from the neighborhood or is not compati-
ble with the architectural style of the ex-
isting building.
• Leaving balusters and railings unpainted
if they are highly visible from the street.
Ramps
• Constructing a ramp that extends more
than 8 feet in front of the primary, street -
facing facade.
Exception
For more information on exceptions to the Iowa
City Guidelines, please refer to section 3.2.
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Iowa City Historic Preservation Handbook
6.0 Iowa City Guidelines for New Construction
26.1
These guidelines are intended to ensure that new buildings are compatible with the character of
the neighborhood where the new construction is to occur. Although most of the lots in Iowa City's
historic neighborhoods are developed, occasionally the opportunity to construct a new primary
structure on a vacant lot may arise, or to replace a non -historic building that has been destroyed.
Most of the new structures built are garages or other outbuildings.
Proposed new buildings must also comply with 8.0 Neighborhood District Guidelines and with 7.0
Iowa City Guidelines for Demolition, if applicable. The content of 8.0 Neighborhood District
Guidelines is used to determine the appropriate size, scale, site location and architectural style of
the new building. These factors are dependent on the character of the surrounding neighborhood
and district. 7.0 Iowa City Guidelines for Demolition requires approval for demolition and of new
building plans prior to issuance of a demolition permit.
New Primary Structures
Recommended:
Balustrades and Handrails
• Following the guidelines for new
balustrades and handrails in section 4.1
Balustrades and Handrails.
• If second -story porches are constructed,
placing them above first -story porches or
first -floor interior spaces.
Building Facade
Unique surface area guidelines exist for
street elevations in the Longfellow
Neighborhood, generally restricting
surface area to no more than 800 square
feet. For Governor, Bowery, and Court
Streets the total surface area of the
street elevation must be no more than
1200 square feet for a new primary
building or for an existing building
including a new addition. For Summit
Street the total surface area of the street
elevation must be no more than 1500
square feet for a new primary building or
for an existing building including a new
addition. For the Moffitt Cottage National
Register Historic District the street
elevation must be no more than 450
square feet for a new primary building or
an existing building including a new
addition. Refer to 8.0 Neighborhood
District Guidelines.
Unique surface area guidelines exist for
street elevations in the College Hill
Neighborhood, generally restricting
surface area to no more than 1200
square feet. Refer to 8.0 Neighborhood
District Guidelines.
Unique surface are guidelines exist for
street elevations in the Northside
Neighborhood., generally restricting
surface area to no more than 1200
square feet. Refer to 8.0 Neighborhood
District Guidelines.
Inappropriate
44
New construction shall be of an appropriate size, scale, site location, and architectural style
as the existing historic structures in the neighborhood.
Building Height and Mass
Unique height and mass guidelines exist
for single-family houses or duplexes in
the Longfellow Neighborhood, restricting
the height to no more than two stories.
For the Summit Street Historic District
single-family houses must have two full
stories in the principal portion of the
building. For the Moffitt Cottage National
Register Historic District single-family
houses must be one story in height.
Refer to 8.0 Neighborhood District
Guidelines.
Unique height and mass guidelines exist
for single-family houses or duplexes in
the College Hill Neighborhood, restricting
the height to no more than two stories.
For College Street single-family houses
and duplexes must be two stories in
height. Refer to 8.0 Neighborhood
District Guidelines.
Unique height and mass guidelines exist
for single-family houses or duplexes in
the Northside Neighborhood, restricting
the height to one -and -a -half or two
stories. Refer to 8.0 Neighborhood
District Guidelines.
Decks and Ramps
• For guidelines on constructing decks and
ramps, see 5.2 Decks and Ramps.
Design
Designing a new primary structure in a
similar style to the architectural styles
prevalent in the district. See the 8.0
Neighborhood District Guidelines for the
architectural styles that are appropriate
for each district.
Once an architectural style for a new
primary building is selected, following the
specifications in section 12.0 Residential
Architectural Styles of Iowa City. This
section describes the massing, roofline,
siding, windows, doors, porches and
other architectural features for each
historic style.
Doors
• Adding exterior doors on front or side
elevations of buildings that have half- or
full -light windows and/or raised panel
construction, and are consistent with the
architectural style.
Iowa City Historic Preservation Handbook
Dormers
• Following the guidelines for new dormers o,
in section 4.7 Mass and Rooflines. o
Masonry
• Using masonry that has a similar
appearance to the masonry on historic
buildings of a similar architectural style.
Paint and Color
• Where synthetic siding is allowed, using
a color scheme that is consistent with the
architectural style of the building.
Porches
• Constructing front porches that are
consistent with the architectural style of
the building. Front porches are a
character -defining element in Iowa City
districts.
• Using vertical -grained fir porch flooring
for the porch decking.
• Using wood or an approved wood
substitute that accepts paint for porch
posts, trim and other components.
• Constructing new porches that are more
than 18 inches above grade using
traditional porch construction with wood
joists and wood flooring.
• Adding a skirting to fill the space
between the porch floor and grade if this
space is 24 inches or greater. The skirt
should be constructed between the porch
piers.
Setbacks
• For new primary buildings, locating the
building a distance from the street so that
the setback is consistent with the
setbacks of existing principal buildings
located along the same frontage.
Determining the setback of a new
primary building by considering the
setbacks of buildings located on the
same block and along the same street
frontage. The setback will be determined
by taking the average of the setbacks of
the two abutting properties. In no case
shall a new building be located closer to
the street than the existing principle
building on its frontage with the
shallowest setback.
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Unique setback guidelines exist for
Summit Street, located within the Summit
Street Historic District and the Longfellow
Neighborhood. On this street the rear
wall of the primary structures must not
extend deeper than 125 feet from the
front street. This restriction preserves
the openness of the rear years. Refer to
8.0 Neighborhood District Guidelines.
Sidin
• Using siding that is consistent with the
architectural style of the new building.
Most historic siding in Iowa City is wood.
Fiber cement siding is an acceptable
substitute for wood siding in most
circumstances.
Windows
0
• Specifying the window type, proportion,
o shape, profile, divided -light pattern, and
placement based on the architectural
style of the new structure and
contributing structures of a similar style.
Using windows that are made of wood.
The use of metal -clad, solid -wood
windows is acceptable. Windows and
trim must accept paint. Divided -lights
must be created with muntins that are
adhered to both sides of the glass.
• Placing small decorative windows in the
attic level of front gable ends if consistent
with the architectural style.
Adding wood (or an acceptable wood
substitute) window trim that is three to
four inches in width if the exterior walls
are sided with wood.
11 •••_
• Using wood or an approved wood
substitute for building trim and features
such as corner boards, window trim,
frieze boards, columns, brackets and
similar features.
Wood Substitutes
Substituting a material in place of wood
only if the substitute material retains the
appearance and function of wood. The
substitute material must be durable,
accept paint, and be approved by the
Historic Preservation Commission. For
many applications, fiber cement board is
an approved wood substitute.
Disallowed:
Doors
• Installing sliding glass patio doors in any
location that is highly visible from the
street.
Constructing balconies that protrude
from the walls without vertical supports
on the front or sides of the building.
Masonry
Using synthetic masonry materials such
as artificial stone.
Porches
Unique porch guidelines exist for the
Moffitt Cottage National Register Historic
District. In this district traditional front
porches were not used and are not
permitted. Refer to 8.0 Neighborhood
District Guidelines.
Constructing a new front porch that is
entirely enclosed with walls and/or
windows. Only a portion of a front porch
may be enclosed with screens to provide
a sitting area that is to the side of the
steps and front entrance of the house.
The screens should be set behind the
columns and balustrades to create an
appearance that is consistent with the
architectural style.
Windows
• Using snap -in muntin bars to create the
appearance of divided -lights.
Not Recommended:
Attached Garages
• Constructing attached garages.
However, if constructed, they should be
set back at least 20 feet from the street -
facing plane of the building.
Masonry
• Using thin veneer masonry.
Shutters
Adding shutters if shutters are not
consistent with the architectural style of
the building.
46
Iowa City Historic Preservation Handbook
Exceptions
In order to provide flexibility for certain changes and certain properties, the Commission has docu-
mented a number of exceptions to the Iowa City Guidelines. Projects requiring the exceptions cor-
responding to the property type listed below may be approved by the Preservation Planner or
Preservation Planner and Chair. Projects requiring exceptions to the guidelines that are not listed
may be considered by the full Commission under major review. The Commission is afforded flexi-
bility when reviewing applications in order to arrive at historically and architecturally appropriate
solutions in cases where a proposed construction project does not significantly affect the architec-
tural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find guid-
ance in the additional guidelines, outlined in section 3.4. When approving a project requiring an
exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2
Applies to: All Properties in Conservation Districts
Porches
Porch floors may be concrete if the floor
is no more than 18 inches above grade.
Porch floors that are more than 18
inches above grade must be built in a
traditional way with wood joists and wood
flooring.
Pretreated porch decking or dimensional
lumber may be used provided the gaps
between the floorboards do not exceed
1 /8 inch.
• Porches on rear elevations need not re-
produce historic details.
Applies to: Non -Historic Properties in Historic and
Conservation Districts
New Balustrades and Handrails
• Alternative baluster and handrail designs
may be considered.
Applies to: Non -Historic Properties in Conservation
Districts
Siding
• Synthetic siding may be used on new
primary structures, provided all window
and door trim, corner boards, band
boards or other trim are wood or an ap-
proved wood substitute.
Windows
Vinyl and vinyl clad wood windows and
snap -in muntin bars (grids) may be used
on new primary structures.
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Iowa City Historic Preservation Handbook
6.2 New Outbuildings
Recommended:
Building Facade
• Unique surface area guidelines exist for
street elevations for Summit Street.,
located within the Summit Street Historic
District and the Longfellow
Neighborhood. On this street the total
surface area of the street elevation must
be no more than 750 square feet for a
new outbuilding building. Refer to 8.0
Neighborhood District Guidelines.
Design
• Placing new outbuildings, including
garages, to the rear of the primary
building.
o • Constructing garages and other
C° outbuildings that are clearly subordinate
in size and ornamentation to the primary
structure.
• Constructing new outbuildings that reflect
the style of the primary structure. The
primary structure will typically reflect a
style of architecture prevalent within the
district. See the 8.0 Neighborhood
District Guidelines for the architectural
styles that are appropriate for each
district.
Garage Doors
• Installing garage doors that are simple in
design. Smooth or simple panel -type
garage doors may be used.
• Adding trim around the garage door
openings that matches the trim of other
doors and windows on the building.
• Installing single -car garage doors.
Double -car garage doors are
discouraged.
Windows
• Incorporating windows into the design
that are relatively small and rectangular.
Disallowed:
Attached Garages
• Unique setback guidelines exist for the
Summit Street Historic District, located
within the Longfellow Neighborhood. In
this district attached garages are not
allowed.
• Garages must be located at the rear of
the property whenever possible. Refer to
8.0 Neighborhood District Guidelines.
Sidin
• The use of synthetic siding such as
aluminum, vinyl, or false masonry siding
for an outbuilding in an historic district.
Not Recommended:
Attached Garages
• Constructing garages attached to the
primary building.
48
Iowa City Historic Preservation Handbook
Exceptions
In order to provide flexibility for certain changes and certain properties, the Commission has docu- c,
mented a number of exceptions to the Iowa City Guidelines. Projects requiring the exceptions cor-
responding to the property type listed below may be approved by the Preservation Planner or
Preservation Planner and Chair. Projects requiring exceptions to the guidelines that are not listed 0
may be considered by the full Commission under major review. The Commission is afforded flexi-
bility when reviewing applications in order to arrive at historically and architecturally appropriate
solutions in cases where a proposed construction project does not significantly affect the architec- G
tural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find guid-
ance in the additional guidelines, outlined in section 3.4. When approving a project requiring an o
exception, the Commission shall identify the guideline(s) for which the exception is being made, m
and the rationale for the exception. :c-
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
Applies to: All Properties in Conservation Districts a
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Design
• New outbuildings may reflect the historic outbuilding styles in the neighborhood or the style of
the primary building.
Sidin
• Synthetic siding may be used on new outbuildings.
Windows
• Vinyl or vinyl clad wood windows and snap -in muntin bars (grids) may be used on new out-
buildings.
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garage
Simple garage designs that are appropriate on most properties in Iowa City
49
Iowa City Historic Preservation Handbook
7.0 Iowa City Guidelines for Demolition
Demolition involves the complete removal of a building or a portion of a building. Removal of
dormers, decorative trim, porches, balusters, chimneys and other significant features requires a
o permit for demolition, and therefore historic review. The Historic Preservation Commission will act
to ensure the prevention of demolition by neglect and to ensure historically appropriate steps are
0 taken during the remediation of dangerous conditions.
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0
A Certificate of Appropriateness for the demolition of any primary building on a contributing prop-
erty within a conservation or historic district, or any landmark, will be denied unless the applicant
(, can demonstrate that the building is structurally unsound and irretrievable. A decision to approve a
Certificate of Appropriateness for the demolition of outbuildings on contributing and noncontribut-
0 ing properties, and primary buildings on noncontributing properties, will be made on a case -by -
case basis. For these cases, the Commission will consider the condition, integrity and architectural
U significance of the outbuilding or noncontributing building.
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o A Certificate of Appropriateness is also required for the removal of any portion of a building, such
as a porch, porch balustrade, decorative brackets and trim, dormers, chimney or other architectur-
ally significant components on any structure within a district, or on any landmark.
0
Before a Certificate of Appropriateness for demolition will be approved for a primary building, the
Iowa City Historic Preservation Commission must approve a Certificate of Appropriateness for the
building that will replace the one being demolished. This is true for primary buildings located on
contributing and noncontributing properties. These projects will also be evaluated using 6.0 Iowa
City Guidelines for New Construction and 8.0 Neighborhood District Guidelines
Recommended:
• Removing additions or alterations that
are not historic and that significantly
detract from the building's historic
character.
• Removing non -historic buildings and
structures that detract from the historic
character of a district. Such buildings
should be replaced with buildings that
are more compatible with the district.
• Removing portions of a building that are
structurally unsound and are a safety
hazard.
• Saving and storing on site any historic
architectural features such as windows,
doors and trim that are removed from a
building or structure.
• Retaining historic garages. If the period
garage is insufficient for modern-day
vehicles, efforts should be made to
construct a new garage on another
portion of the site.
• Designing replacement garages to be
compatible in design with the primary
structure and/or other outbuildings in the
neighborhood. See 6.0 Iowa City
Guidelines for New Construction.
Disallowed:
Demolishing any primary building on a
contributing property within a
conservation or historic district, or any
Iowa City Historic Landmark.
• Removing any historic architectural
feature, such as a porch, chimney, bay
window, dormer, brackets or decorative
trim, that is significant to the architectural
character and style of the building.
Not Recommended:
Removing significant historic site
features on the property such as brick
driveways and iron fences.
Exception
For more information on exceptions to the
Iowa City Guidelines, please refer to section
3.2.
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Iowa City Historic Preservation Handbook
7.2 Prevention of Demolition by Neglect
All buildings and structures that contribute to a Conservation or Historic District; or that are listed or are eligible for listing
on the National Register of Historic Places, regardless of whether they are in a designated Historic or Conservation
District, must be preserved against decay, deterioration, and kept free from structural defects. Accordingly, all such
buildings and structures must be maintained in accordance with the provisions of Section 17-5-19 of the Housing Code, o
Responsibilities of Owners Relating to the Maintenance and Occupancy of Premises.
The Historic Preservation Commission may file a petition with the Building Official requesting investigation of any
applicable building or structure suspected of neglect or deterioration. The Building Official will proceed with investigation n
and may take any enforcement action necessary to correct or prevent further violation. Failure to comply with the stated K
corrective action may result in penalties and/or legal action, c
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Iowa City Historic Preservation Handbook
8.0 Neighborhood District Guidelines
The size of a primary building on a site, the size of the yard, as well as the architectural character
of the building are defining characteristics of historic and conservation districts, and vary according
to the neighborhood. This section deals specifically with site, scale, structure location, and
architectural style standards unique to properties within certain Iowa City neighborhoods.
Proposed projects on buildings within a neighborhood listed in this section must meet the
c� respective Neighborhood District Guidelines in addition to the other applicable standards of the
t5 Iowa City Preservation Handbook. The provisions of this section will supersede provisions found
L_, elsewhere in the handbook if the provisions conflict.
0 8.1 Longfellow Neighborhood
� The Longfellow Neighborhood District Guidelines apply to the Summit Street Historic District,
0 Longfellow Historic District (including the Moffitt Cottage National Register Historic District),
Governor -Lucas Street Conservation District, Clark Street Conservation District, and Dearborn
Street Conservation District. They apply to single-family, duplex and multi -family buildings in these
Z neighborhood districts Proposed new multi -family buildings must also comply with 9 0 Design
51
Guidelines for Multi -Family Buildings. ?
N,"� �<.,�� �,
T�
Site and Scale Guidelines
Setback, Front
On Summit Street only: The rear wall of the
primary structures must not extend deeper than
125 feet from the front street. This restriction
preserves the openness of the rear yards.
Building Facade +:. �� ,t �a,L
The total surface area of the street elevation of a 5
new primary building must be no more than 800
square feet. Existing primary structures must not
p '_ 1,
117
be expanded m such a manner that the total r r J
surface area exceeds 800 square feet. For the IF
purposes of enforcing this guideline, the total''
surface area of the street elevation is defined as a figure derived by calculating the surface area of
all wall and roof surfaces, including window and door openings that are visible in a measured
drawing of the building's street elevation.
On Governor, Bowery, and Court Streets only: The total surface area of the street elevation must
be no more than 1200 square feet for a new primary building or for an existing building including a
new addition.
On Summit Street only: The total surface area of the street elevation must be no more than 1500
square feet for a new primary building or for an existing building including a new addition, and no
more than 750 square feet for a new outbuilding.
In the Moffitt Cottage National Register Historic District only: The surface area of the street
elevation must be no more than 450 square feet for a new primary building or an existing building
including a new addition.
Outbuildings
In the Summit Street Historic District only: Attached garages are not allowed. Garages must be
located at the rear of the property wherever possible.
52
Iowa City Historic Preservation Handbook
Architectural Guidelines for New Primary Structures
Building Styles
Architectural style is a defining characteristic for historic and conservation districts. A new primary
structure must reflect the historic styles of its neighborhood. Although new construction may adapt
and mix some elements of different styles, a single style must dictate the height and mass,
rooflines, fenestration, and overhangs for the new building. Please refer to section 12.0 Residential
Architectural Styles of Iowa City for examples of historic building styles. The architectural styles
represented in each district are given below.
In the Summit Street Historic District only: A new building must reflect the Italianate, Queen Anne,
Colonial Revival, American Foursquare, Prairie School, Vernacular, or Eclectic style.
In the Longfellow Historic District only: A new building must reflect the Queen Anne, Colonial
Revival, Craftsman, Craftsman Bungalow, American Foursquare, Prairie School, Period Revival
Cottage, Vernacular, or Eclectic style.
In the Governor -Lucas Street Conservation District only: A new building on Governor Street must
reflect the Italianate, Queen Anne, American Foursquare, or Vernacular style. A new building on
Lucas Street must reflect the Queen Anne, Craftsman, Craftsman Bungalow, American
Foursquare, Prairie School, or Vernacular style.
In the Clark Street Conservation District only: A new building must reflect the Queen Anne,
Colonial Revival, Craftsman, Craftsman Bungalow, American Foursquare, Vernacular, or Eclectic
style.
In the Dearborn Street Conservation District only: A new building must reflect the Craftsman,
Craftsman Bungalow, American Foursquare, Vernacular, or Eclectic style.
In the Moffitt Cottage National Register Historic District only: A new building must reflect the Period
Revival Cottage style.
Building Height and Mass
New structures must be one, one -and -a -half, or two stories in height except as noted below.
In the Summit Street Historic District only: New single-family houses must have two full stories in
the principal portion of the building.
In the Moffitt Cottage National Register Historic District only: New single-family houses must be
one story in height.
Porches
In the Moffitt Cottage National Register Historic District only: Traditional front porches were not
used in this district and are not permitted
Exception
In order to provide flexibility for certain changes and certain properties, the Commission has
documented a number of exceptions to the Iowa City Guidelines. Projects requiring the
exceptions corresponding to the property type listed below may be approved by the Preservation
Planner or Preservation Planner and Chair. Projects requiring exceptions to the guidelines that
are not listed may be considered by the full Commission under major review. The Commission is
afforded flexibility when reviewing applications in order to arrive at historically and architecturally
appropriate solutions in cases where a proposed construction project does not significantly affect
the architectural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find
guidance in the additional guidelines, outlined in section 3.4. When approving a project requiring
an exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
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For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
53
Iowa City Historic Preservation Handbook
8.2 College Hill Neighborhood
The College Hill Neighborhood District Guidelines apply to the College Green Historic District, East
College Street Historic District, and the College Hill Conservation District. They apply to single-
family, duplex and multi -family buildings in these neighborhood districts. Proposed new multi-
family buildings must also comply with 9.0 Design Guidelines for Multi -Family Buildings.
JEUERSON T L
Site and Scale Guidelines r
Building Facade AVE TWA AVE
The total surface area of the street elevation of a I ns vatl S r,
new primary structure must be no more than 1200 WAS„O.G;TOS\ j
11-1
square feet. Existing primary structures that were E �` `" " N
E1, ��;I
historically single-family houses must not be I:1 l=l_ iE9e e w tre r
expanded in such a manner that the total surface r°"c Stir �E st
LLE _.
area exceeds 1200 square feet. For the purposes
1 BIRIINGTON ST
of enforcing this guideline, the total surface area — ;
T�:
of the street elevation is defined as a figure 1,,
derived by calculating the surface area of all wall
and roof surfaces, including window and door openings that are visible in a measured drawing of
the building's street elevation.
o00 Architectural Guidelines for New Primary Structures
Building Styles
Architectural style is a defining characteristic for historic and conservation districts. A new primary
structure must reflect the historic styles of its neighborhood. Although new construction may adapt
and mix some elements of different styles, a single style should dictate the height and mass,
rooflines, fenestration, and overhangs for the new building. Please refer to section 12.0 Residential
Architectural Styles of Iowa City for examples of historic building styles.
In the College Hill Neighborhood: A new building must reflect the Italianate, Queen Anne, Colonial
Revival, Craftsman, American Foursquare, Prairie School, Period Revival House, Vernacular or
Eclectic style.
Building Height and Mass
New single-family houses or duplexes must be one -and -a -half, or two stories in height, except as
noted below. New multi -family structures must be compatible in height and mass with the
surrounding neighborhood.
On College Street only: New structures must be two stories in height.
Exception
In order to provide flexibility for certain changes and certain properties, the Commission has
documented a number of exceptions to the Iowa City Guidelines. Projects requiring the
exceptions corresponding to the property type listed below may be approved by the Preservation
Planner or Preservation Planner and Chair. Projects requiring exceptions to the guidelines that
are not listed may be considered by the full Commission under major review. The Commission is
afforded flexibility when reviewing applications in order to arrive at historically and architecturally
appropriate solutions in cases where a proposed construction project does not significantly affect
the architectural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find
guidance in the additional guidelines, outlined in section 3.4. When approving a project requiring
an exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
54
Iowa City Historic Preservation Handbook
8.3 Woodlawn Historic District
These guidelines apply to single-family, duplex and multi -family buildings in the Woodlawn Historic
District. Proposed new multi -family buildings must also comply with 9.0 Design Guidelines for
Multi -Family Buildings.
Site and Scale Guidelines
Due to the unique site characteristics of this district,
standard Site and Scale Guidelines are difficult to
apply. Therefore, the Historic Preservation
Commission will use section 10.0 The Secretary of
the Interior's Standards for Rehabilitation for these
guidelines.
Architectural Guidelines for New Primary
Structures
MAI�KE I S I
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JEFFERSON
Building Styles 1_ .1
Although it is unlikely that a new primary structure will WASHING -
be constructed in the Woodlawn Historic District, in -1
the event that this should happen, projects will be ,z
evaluated using section 10.0 The Secretary of the -
Interior's Standards for Rehabilitation. Please refer to to
section 12.0 Residential Architectural Styles of Iowa iOiL iEc
City for examples of historic building styles.
In the Woodlawn Historic District: A new building must reflect the Gothic Revival, Italianate, Queen
Anne, Stick/Eastlake, Tudor Revival or Eclectic style.
Exception
In order to provide flexibility for certain changes and certain properties, the Commission has
documented a number of exceptions to the Iowa City Guidelines. Projects requiring the
exceptions corresponding to the property type listed below may be approved by the Preservation
Planner or Preservation Planner and Chair. Projects requiring exceptions to the guidelines that
are not listed may be considered by the full Commission under major review. The Commission is
afforded flexibility when reviewing applications in order to arrive at historically and architecturally
appropriate solutions in cases where a proposed construction project does not significantly affect
the architectural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find
guidance in the additional guidelines, outlined in section 3.4. When approving a project requiring
an exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
55
Iowa City Historic Preservation Handbook
8.4 Northside Neighborhood
The Northside Neighborhood District Guidelines apply to the Brown Street Historic District and
Northside Historic District. They apply to single-family, duplex and multi -family buildings in these
neighborhood districts. Proposed new multi -family buildings must also comply with 9.0 Design
Guidelines for Multi -Family Buildings.
Site and Scale Guidelines
Building Facade
The total surface area of the street elevation of a new
primary structure must be no more than 1200 square feet. I4
Existing primary structures that were historically single-
family houses must not be expanded in such a manner'
that the total surface area exceeds 1200 square feet. For
the purposes of enforcing this guideline, the total surface
area of the street elevation is defined as a figure derived ; 1
by calculating the surface area of all wall and roof p?„-
surfaces, including window and door openings that are ;
visible in a measured drawing of the building's street-.- -- > r � 'T
elevation.
On Bella Vista Drive only: Due to the unique site:,
characteristics of this area, standard Site and Scale E
Guidelines are difficult to apply. Therefore, the Historic
Preservation Commission will use section 10.0 The Secretary of th6
Rehabilitation for these guidelines.
Architectural Guidelines for New Primary Structures
a.2
Interior's Standards for
Building Styles
Architectural style is a defining characteristic for historic and conservation districts. A new primary
structure must reflect the historic styles of its neighborhood. Although new construction may adapt
and mix some elements of different styles, a single style should dictate the height and mass,
rooflines, fenestration, and overhangs for the new building. Please refer to section 12.0 Residential
Architectural Styles of Iowa City for examples of historic building styles.
In the Northside Neighborhood: A new building must reflect the Italianate, Queen Anne, Colonial
Revival, Craftsman, American Foursquare, Prairie School, Vernacular, or Eclectic style.
Building Height and Mass
New structures must be one -and -a -half or two stories in height.
Exception
In order to provide flexibility for certain changes and certain properties, the Commission has
documented a number of exceptions to the Iowa City Guidelines. Projects requiring the
exceptions corresponding to the property type listed below may be approved by the Preservation
Planner or Preservation Planner and Chair. Projects requiring exceptions to the guidelines that
are not listed may be considered by the full Commission under major review. The Commission is
afforded flexibility when reviewing applications in order to arrive at historically and architecturally
appropriate solutions in cases where a proposed construction project does not significantly affect
the architectural character of a historic structure.
In deciding on a project requiring an exception to the guidelines, the Commission may find
guidance in the additional guidelines, outlined in section 3.4. When approving a project requiring
an exception, the Commission shall identify the guideline(s) for which the exception is being made,
and the rationale for the exception.
For more information on exceptions to the Iowa City Guidelines, please refer to section 3.2.
56
Iowa City Historic Preservation Handbook
9.0 Design Guidelines for Multi -Family Buildings
Compliance with 14-26-6 Multi -Family Site Development Standards of the Iowa City Zoning Code
must be demonstrated prior to the issuance of a Certificate of Appropriateness. The standards of
this section will be administered by the Historic Preservation Commission concurrently with review in
of the proposed development as defined in 14-213-6 Multi -Family Site Development Standards.
The provisions of this section will supersede the provisions of 14-213-6 Multi -Family Site o
Development Standards if the provisions conflict. New structures must also meet the provisions of
8.0 Neighborhood District Guidelines. Please be advised building permit requirements are unique G'
for multi -family structures. Please contact the Building Department at 356-5120 before beginning a
work to inquire about your property. m
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9.1 Site Elements o
Building Access, Entrances and Orientation
Buildings must have at least one door on the exterior of the building that provides pedestrian
access to dwelling units within the building. A pedestrian circulation system must be provided that 2)
connects residential entrances to adjacent public rights -of -way, and to parking areas and other on- Z
site facilities. Guidelines for disability access can be found in 5.2 Ramps and Decks.
a
The "front" of the building must have at least one main entrance to the building, or may contain
separate main entrances to the ground level dwelling units. Main entrances to a building require
certain architectural treatments which emphasize the entrance. These can be found in 9.2
Architectural Elements.
Orientation of the "front" of the building must be to the street or interior courtyard in a manner
similar to existing buildings in the neighborhood
Lighting
All exterior lighting, including balcony and porch lighting, must be carefully placed, downcast and
shielded so that entrances, sidewalks and stairways are well lit, but the lighting is non -obtrusive to
neighboring properties. No exterior light source should be located on poles more than 15 feet high.
When lights mounted on buildings are intended to provide site lighting rather than corridor or exit
lighting, they must be mounted no higher than 15 feet. For requirements on the use of lighting to
highlight architectural elements, see 9.2 Architectural Elements.
Parking and Garages
Parking lots, including detached garages and carports, must not be located between the principle
building and the street. Parking must be located behind a building, below grade, or under a
building. On corner lots parking may be located alongside the building, but not within a required
front or side yard and no closer than 20 feet to the sidewalk. Landscaped screening consisting of
densely planted evergreen shrubs, a hedge, a combination of evergreen and deciduous shrubs, or
a decorative masonry wall in combination with landscaping must be used to screen the parking
from the street and adjacent properties.
Where parking is located below a building, any exposed portions of the exterior walls of the
parking area visible from a street must appear to be a component of the facade of the building.
The use of similar building materials, window openings, and providing facade detailing similar to
the upper levels are examples of how this can be achieved. In no case shall a building have the
57
Iowa City Historic Preservation Handbook
appearance from the street of being elevated above a parking level, or "on stilts."
When parking is provided within the primary structure, garage doors should not be located on any
side of a building facing a street. When located on a side wall or on a rear wall on a corner lot,
landscaping, masonry walls, or elements of the building should be used to help screen the garage
doors from view from the street.
............
Location of surface parking for properties with a single building
..........................
Acceptable
Unacceptable
Location of surface parking for properties with multiple buildings
Setback, Front
The front yard setback must comply with the setback requirements established within the
appropriate individual district guidelines. If no setback requirement is established within the district
guidelines, the following standard must apply. The front setback for new buildings must not deviate
more than 5 feet from the average setback of existing principal buildings along the same frontage.
A new building may not be located closer to the street than the existing principal building that is
closest to the street along the same frontage.
9.2 Architectural Elements
Architectural Details
The building should include architectural details to add interest to
building elevations visible from the public street, including but not
limited to the following: Quoins, dentils, cornice moldings, brackets,
arches, corner boards, keystones, decorative lintels and sills, double -
hung windows, soldier courses, belt courses, bay windows, and other
decorative features as appropriate for the design of the overall
building and materials being used. The use of these elements must
be reviewed in the context of the overall building design and the
character of the historic district, and not simply based on the provision
of these architectural details.
Frieze board
Corner board
_ _...
Window trim
Masonry
base
Building Materials
58
Iowa City Historic Preservation Handbook
Architectural Style
The purpose of requiring an architectural style is to ensure that the mass, roof form, window style
and configuration, and the basic architectural details of a building are generally compatible with the
historic character of the historic or conservation district. New buildings should appear similar to a
large house or a small historic apartment building. ce
0
Any building elevation that is within public view (visible from a public street, public sidewalk, public
access easement, or other public way, or from a public park or other public open space area.), o
must be designed in a manner that is consistent with a historic architectural style typical ofLn
residential buildings in the historic and conservation districts. However, building facades that are
visible only from public alleys are not subject to these standards. The applicable architectural a
styles are outlined in 8.0 Neighborhood District Guidelines, and include: Italianate; Queen Anne;.
Colonial Revival; Craftsman; Craftsman Bungalow; American Foursquare; Prairie School; Period M
Revival; and Eclectic. The applicant must indicate in detail how each of the following architectural o
elements in the proposed building are consistent with one of these architectural styles as K
described in 12.0 Residential Architectural Styles of Iowa City:
1. Form and mass of the building; 3
3
2. Roof configuration and pitch;
3. Style and placement of windows and doors; a
4. Window and door trim, eave boards, frieze boards, and other trim; `Q
5. Porch and entrance features;
6. Building details and ornamentation.
Alternative designs that have been prepared by a licensed architect may be acceptable and will be
reviewed on a case -by case basis.
Balconies, Decks, Exterior Stairways, Corridors Lifts and Ramps
Balconies, decks, exterior stairways, corridors, lifts and ramps should be designed so that they are
integrated into the overall design of the building. Methods of integrating these elements into the
building design may include, but are not limited to, fully or partially recessing them into the facade
of the building, placing them under a roof that is integrated into the overall roof plan, utilizing
supports that are compatible with the rest of the building in terms of materials and design, and
utilizing supports that reach to the ground rather than append on the exterior of the building.
For purposes of this subsection the term, "exterior stairways," refers to stairways that lead to floors
of a building that are above the first or ground -level floor of a building. "Exterior corridors refers to
unenclosed corridors located above the first or ground -level floor of a building. Balconies and
exterior stairways, exterior corridors and exterior lifts must comply with the following standards:
Exterior stairways, exterior lifts and exterior corridors must be covered with a roof similar in
design and materials to the roof over the rest of the structure. Said roof should be
incorporated into the overall roof plan of the structure. Alternatively, such features may be
recessed into the facade of the building. Exterior corridors may not be located on a street -
facing wall of the building or within 20 feet of a street -facing wall.
59
Iowa City Historic Preservation Handbook
2. Unenclosed or partially enclosed stairways may not be used as the primary means of access
to dwelling units located above the ground -level floor of the building (see 14-2B-6D-6 of the
Iowa City Zoning Code).
3. Balconies, exterior stairways, exterior lifts and exterior corridors may not be located on any
side of a building that is adjacent to a property that is zoned Single Family Residential or that
contains an existing Single Family Use. Buildings that are set back at least 40 feet from any
such property are exempt from this standard.
4. The design of any balcony, exterior stairway, exterior lift or exterior corridor must utilize
columns, piers, supports, walls, and railings that are designed and constructed of materials
that are similar or complementary to the design and materials used for the rest of the building.
5. Decks and ramps should be designed according to the guidelines set out in section 5.2 Decks
and Ramps.
" § = L_J ES L__J L_ff9__J
Unacceptable Acceptable Acceptable
Balconies and exterior corridors
Building Height and Mass
Measures should be incorporated into the design of a new building that help to reduce its "visual
mass" and overall height. In historic and conservation districts the width of the front fagade of new
buildings must not exceed 40 feet unless the horizontal plane of any street -facing fagade of the
building is broken into modules that give the appearance of smaller, individual buildings. Each
module must meet the following standards:
1. Each module must be no greater than 30 feet and no less than 10 feet in width and must be
distinguished from adjacent modules by a variation in the wall plane of at least 16 inches in
depth. For buildings that are 3 or more stories in height, the width of the module may be
increased to 40 feet.
2. Each module must have a corresponding change in the roofline.
3. Each module must be distinguished from the adjacent module by at least one of the following
means:
a) Variation in Material colors, types or textures;
b) Variation in the building and/or parapet height;
c) Variation in the architectural details such as decorative banding, reveals, stone, or tile
accents;
d) Variation in window pattern.
e) Variation in the use of balconies and recesses.
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Iowa City Historic Preservation Handbook
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Building modules that break up the horizontal plane
Unacceptable Acceptable
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Building articulation
Entrances
Main entrances to a building, including main entrances to ground level individual dwelling units
must be clearly demarcated by one of the following means: covered porch or canopy, transom and
sidelight windows, pilasters and pediment, or other significant architectural treatments that
emphasize main entrances.
a. Canopy a. Porch b. Transom & c. Pilasters &
sidelight wbndows pediment
Main entrance features
Lighting
Lights intended to architecturally highlight a building or its features must use a limited pattern of
light that does not extend beyond the wall of the building.
Roofline
Rooflines should reflect the predominant roof type, orientation, scale and pitch of existing buildings
within the neighborhood.
Cil
Iowa City Historic Preservation Handbook
Windows/Fenestration
The placement of windows and doors on street elevations should be consistent with the window
and door patterns found on other properties in the surrounding neighborhood, and of a similar size,
scale and proportion to the windows of other buildings in the neighborhood. Individual window
units that are located in primary living spaces, such as living rooms, dining areas, and bedrooms,
must have a height that is at least 1.5 times greater than the width of the window unit. Individual
window units may be located side -by -side in a wider window opening. Bathroom, kitchen,
skylights, and decorative windows, such as stained-glass and ocular windows, are not required to
meet this standard. The use of trim and moldings must be similar in width and character to
surrounding buildings.
width
5
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Window proportions
Iowa City Historic Preservation Handbook
10.0 The Secretary of the Interior's Standards for Rehabilitation
The Secretary of the Interior's Standards for Rehabilitation (Standards) were originally written to
determine the appropriateness of proposed project work on properties that were listed on the
National Register of Historic Places. The Standards are accompanied by instructions concerning
methods, materials, historical character, and other considerations that relate to the historical
significance of the particular property and its surroundings. The Standards have been widely
accepted by state, county, and city governments.
The Iowa City Historic Preservation Commission uses the Standards to determine the
appropriateness of exterior changes to historic landmarks and properties located in historic and
conservation districts. The Iowa City Guidelines are based on and comply with the Standards, and
were written to provide more specific guidance for owners, contractors and consultants in Iowa
City as well as the Historic Preservation Commission.
The Secretary of the Interior's Standards for Rehabilitation (1990) are listed below.
1. A property shall be used for its historic purpose or be placed in a new use that requires
minimal change to the defining characteristics of the building and its site and environment.
2. The historic character of a property shall be retained and preserved. The removal of historic
materials or alteration of features and spaces that characterize a property shall be avoided.
3. Each property shall be recognized as a physical record of its time, place, and use. Changes
that create a false sense of historical development, such as adding conjectural features or
architectural elements from other buildings, shall not be undertaken.
4. Most properties change over time; those changes that have acquired historic significance in
their own right shall be retained and preserved.
5. Distinctive features, finishes, and construction techniques or examples of craftsmanship that
characterize a property shall be preserved.
6. Deteriorated historic features shall be repaired rather than replaced. Where the severity of
deterioration requires replacement of a distinctive feature, the new feature shall match the old
in design, color, texture, and other visual qualities and, where possible, materials.
Replacement of missing features shall be substantiated by documentary, physical, or pictorial
evidence.
7. Chemical or physical treatments, such as sandblasting, that cause damage to historic
materials shall not be used. The surface cleaning of structures, if appropriate, shall be
undertaken using the gentlest means possible.
8. Significant archeological resources affected by a project shall be protected and preserved. If
such resources must be disturbed, mitigation measures shall be undertaken.
9. New additions, exterior alterations, or related new construction shall not destroy historic
materials that characterize the property. The new work shall be differentiated from the old and
shall be compatible with the massing, size, scale, and architectural features to protect the
historic integrity of the property and its environment.
10. New additions and adjacent or related new construction shall be undertaken in such a manner
that if removed in the future, the essential form and integrity of the historic property and its
environment would be unimpaired.
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Iowa City Historic Preservation Handbook
11.0 Title 14: Iowa City Zoning Code
The Iowa City Zoning Code is a document to ensure proper implementation of the Comprehensive
Plan for the city of Iowa City. All development, including work on historic structures, must comply
o with the rules and regulations set out in the Zoning Code. Certain procedures, standards,
v regulations, guidelines, incentives, definitions, and noncompliance violations exist for historic
rn
preservation. The sections of the Zoning Code below detail the preponderance of administrative
N procedures and rules which relate to projects involving historic structures. The Zoning Code may
be found at http://www.icgov.org/zoning, or may be viewed or purchased from the Department of
Planning and Community Development.
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3
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11.1 Chapter 2, Article B — Multi -Family Residential Zones
Multi -Family Site Development Standards
H Chapter 2, Article B, Section 6 of the Iowa City Zoning Code deals with the requirements of multi-
o family structures and the requisite parking and driveway requirements, architectural styling,
building materials and minor modifications to existing structures.
11.2 Chapter 3, Article B — Historic District and Conservation District
Overlay
Historic District Overlay Zone
Chapter 3, Article B, Section 1 of the Iowa City Zoning Code discusses the purpose of an overlay
zone, defines an overlay zone as well as a historic district, provides maps of Iowa City historic
districts and lists designated local historic landmarks.
Conservation District Overlay Zone
Chapter 3, Article B, Section 2 of the Iowa City Zoning Code discusses the purpose of an overlay
zone, defines an overlay zone as well as a conservation district, and provides maps of Iowa City
conservation districts.
Historic Review
Chapter 3, Article B, Section 3 of the Iowa City Zoning Code discusses the purpose of the historic
review, when a historic review is required, the application process, and appealing historic review
decisions.
Certificate of Economic Hardship
Chapter 3, Article B, Section 4 of the Iowa City Zoning Code discusses the preconditions for
application of a Certificate of Economic Hardship and the approval criteria.
Compliance with Certificate Required
Chapter 3, Article B, Section 5 of the Iowa City Zoning Code discusses violations of work
authorized by permits and penalties for violating the parameters of work authorized.
Remedy of Dangerous Conditions
Chapter 3, Article B, Section 6 of the Iowa City Zoning Code grants the Historic Preservation
Committee a chance to provide input into the remedy of historic structures deemed to be
dangerous to life, health, or property.
64
Iowa City Historic Preservation Handbook
Prevention of Demolition by Neglect
Chapter 3, Article B, Section 7 of the Iowa City Zoning Code mandates property owners maintain
buildings against deterioration, decay, structural defects and provides for penalties in the case of
violation.
11.3 Chapter 7, Article A — Boards and Commissions
Historic Preservation Commission -�
Chapter 7, Article A, Section 3 of the Iowa City Zoning Code determines the makeup of the CRD
membership of the Historic Preservation Commission. It further elaborates the purpose, powers
and duties of the Commission, and provides for the establishment of the Design Review
Subcommittee.
r:
11.4 Chapter 8, Article E — Historic Preservation Commission Approval o
Procedures
Designation of Historic Districts, Conservation Districts, and Local Historic Landmarks o
Chapter 8, Article E, Section 1 of the Iowa City Zoning Code discusses the procedures for m
designation of historic districts, conservation districts, and local historic landmarks including
application requirements and provisions for public hearings.
Historic Review
Chapter 8, Article E, Section 2 of the Iowa City Zoning Code discusses the application
requirements for a Historic Review, the various levels of review, and the approval and appeals
procedure.
Certificate of Economic Hardship
Chapter 8, Article E, Section 3 of the Iowa City Zoning Code discusses the circumstances which
qualify for a Certificate of Economic Hardship, the application requirements and the approval
procedure.
11.5 Chapter 9, Article B — Historic Preservation Definitions
This section of the code provides definitions to terms used throughout the code and which refer to
historic preservation.
65
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Iowa City Historic Preservation Handbook
12.0 Residential Architectural Styles of Iowa City
The following is a guide to the most typical architectural styles found in Iowa City's historic and
conservation districts. Building styles are characterized by the mass and proportions of the
building, the style and placement of windows and doors (fenestration), and style of trim and other
ornamentation. New construction in historic and conservation districts should reflect the size,
proportions, fenestration, trim, and other ornamentation of a building style typical of that district.
These guidelines will be used in evaluating new single-family houses and multi -family buildings.
American Foursquare
The American Foursquare style is typified by its
cubical mass and hipped roof. Roof pitches vary
from 6/12 to 10/12. Often, the roof pitch at the
eave will be less than the pitch of the main roof
forming a "sweep" at the roof edge. Overhangs
are often 24 inches or more with boxed -in soffits
and a wide frieze board. Foursquare houses have
hipped, wide attic dormers on one or more sides.
Windows tend to have wider proportions than
other styles, but they are still taller than they are
wide. Although not always strictly symmetrical, the
front facade is very regular. Ornamentation is
typically simple and is usually expressed in the
design of the porch. There may be two types of
siding used, similar to a Craftsman house.
Foursquare porches extend the entire width of the
front facade and have a low-pitched hip roof. The
porch may have two or three large, square
columns on masonry piers to support the roof.
Other Foursquare porches have Classic Revival
style details with round tapered columns. The
porch railing may be constructed of solid panels,
rails with square spindles, or a solid wall covered
with the siding material.
The American Foursquare originated as a design
for single family residences with four rooms on
each of two floors. However, it may be adapted for
multi -family buildings. The square plan may be
elongated or designed as two attached houses to
form a duplex.
Typical American Foursquare house
Foursquare duplex
66
Large Foursquare house with Classic Revival de-
Iowa City Historic Preservation Handbook
12.2 Colonial Revival
Buildings designed in the Colonial Revival style
are distinctive for the formal, often symmetrical
arrangement of the facade and plan. The plan is
typically rectangular, though it may have rear or
side wings. The simple side -gable roof has a pitch
between 8/12 and 12/12 and frequently has small
dormers that are symmetrically placed. Dutch
Colonial Revival style houses have a gambrel roof
with shed dormers at the front and rear of the
house. Colonial Revival buildings have boxed
eaves and they have a wide frieze board beneath
the eave. More elaborate buildings will also have
dentils at the frieze. Ornamentation is limited to
simple classical columns at the porch and
shutters. The width of the two shutters at a
window should equal the width of the window
opening to give the appearance that they are
operable.
Colonial Revival porches are small porticos. The
facade is arranged symmetrically with the portico
and entrance door at the center. However, large
multi -family buildings may have a two-story porch.
The porch roof is a simple gable supported by
round classical columns. The columns should
taper and each column should have a capital and
base. Some Colonial Revival buildings have no
porches, but will at least have an ornamental door
surround with pilasters at the entry.
Single-family houses are 1-1/2 stories to 2-1/2
stories in height. Multi -family buildings may be up
to 3-1/2 stories.
Modest 1 1/2 story Colonial Revival house
Dutch Colonial Revival house
Multi -family Colonial Revival building
N
O
67
Iowa City Historic Preservation Handbook
12.3 Craftsman
In Iowa City, Craftsman style houses are two sto-
ries with a simple rectangular floor plan. Roof
pitches are low, and range from 5/12 to 8/12 with
18 to 24 inch overhangs. The soffits are open,
leaving the rafter tails exposed. The siding mate-
rial often changes between the first and second
story. A wide band board or brick soldier course
will delineate the change in materials. A water ta-
ble and band board is located at the top of the
foundation wall. Other ornamentation is relatively
simple, with square wood brackets, upper sash
divided -lights, and square porch columns.
Q Craftsman porches may be small and only wide
`�T
enough to provide a covered entry, or they may be
the full width of the house. Porch railings are typi-
cally wood panels, solid with siding on either side
or brick, or they may have rails with square spin-
dles. Porch ornamentation is similar to that on the
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main house.
The Craftsman style has also been used for apart-
ment buildings, though there are few examples of
such building in Iowa City. Craftsman apartment
buildings are typically 3-4 stories and have a sym-
metrical plan. They may be U-shaped or the entry
may be centrally located and flanked by vertical
bays. Apartment buildings are usually all brick, or
brick and stucco.
Front -gabled Craftsman house with wall shingles
Side -gabled Craftsman house
Large Craftsman house
68
Iowa City Historic Preservation Handbook
12.4 Craftsman Bungalow
Bungalows are a subset of the Craftsman style.
Although the two styles display similar materials
and ornamentation, Bungalows are only one or 1-
1/2 stories in height. The massing may be quite
simple with a rectangular plan, or more complex
with wall projects, bays and dormers. Like the
Craftsman house, they have square columns,
brackets, open eaves and a lower roof pitch.
There also tend to be more variations of the
Bungalow porch. The porch roof will often be
integrated with the main roof and may extend the
entire width of the facade.
Bungalows are used for single-family residences,
though they may be connected at the side walls to
form a duplex or series of townhouses.
Simple Craftsman Bungalow
Side -gable brick Craftsman Bungalow
Front -gable duplex Craftsman Bungalow
N
O
0
N
Iowa City Historic Preservation Handbook
12.5 Eclectic
Eclectic houses are characterized by the inclusion
of two or more different styles in the same
building. Most frequently, these styles occurred
during the same time period, or the eclectic house
demonstrates the transition between two styles.
Architectural characteristics of these houses may
be influenced by two or more of the styles
described previously in this section. However, for
new construction, it is best to use only two styles
in an Eclectic building with one style dominating.
House with Queen Anne and Foursquare influence
Cottage with Period Revival & Craftsman influ-
ences
Duplex with Queen Anne and Foursquare influence
70
Iowa City Historic Preservation Handbook
12.6 Italianate
The Italianate building style emphasizes
verticality. Often, Italianate buildings are two or
three stories tall with each story having a ceiling
height of at least ten feet. Plans are usually
rectangular, T-shaped, or L-shaped. Italianate
roofs are most commonly gabled with a hipped
cornice return. The roof pitch is between 6/12
and 8/12. Distinctive of this style is the decorative
cornice with intricate brackets beneath a wide
overhang. Windows are narrow and tall, and first
and second story windows are typically aligned
and evenly spaced. Italianate buildings often
have decorative bay windows and paired narrow
windows in lieu of a wider single window.
Window and door openings are often arched with
decorative "hoods" and sills.
Italianate porches are ornate, with chamfered
square columns and decorative balustrades. The
balustrades may have turned or square members
placed horizontally as well as vertically. A
geometric pattern may also be cut from flat one -
inch boards to form the balustrade. Italianate
porches often have decorative friezes composed
of spindles just below the eaves. Porches often
extend the entire width of the front facade and
may wrap around to the side.
Simple rectangular Italianate house
Elaborate T-shaped Italianate house
Large Italianate building
N
O
71
Iowa City Historic Preservation Handbook
12.7 Period Revival Cottages and Houses
Historic European architecture, such as Cotswold
cottages, Tudor houses, French country houses,
and Renaissance manor houses, provide the
precedent for Period Revival cottages and
houses. The architectural characteristics of Period
Revival buildings are based on the architectural
style emulated. The modest, picturesque cottages
of Howard Moffitt are most evocative of English
Cotswold cottages. Other cottages, as well as
fraternity houses, are commonly based on English
Tudor architecture.
Period Revival cottages tend to have irregular
Q plans, roof lines, and facades. Roof pitches vary
`° from 8/12 to 16/12 or steeper. Houses with very
steep gables are more evocative of Tudor
cottages. The Period Revival style is distinctive
more for the use of materials, massing and
o roofline than applied ornament. The cottages are
04 usually 1-1/2 stories in height and the roof may be
gabled or hipped with small dormers interrupting
the roofline. Most of the window openings are
small, and sometimes arched and have wood
shutters that appear to be operable. They often
have a stone or brick chimney protruding from the
exterior wall.
Period Revival cottages typically do not have
porches. They have a brick or stone front stoop
and a small entry vestibule. Some cottages may
have a simple bracketed canopy at the entry.
Fraternity and sorority houses were typically
constructed in the Period Revival style. Though
significantly larger than cottages, the architectural
characteristics of these houses are similar to
those of the cottages described above.
Tudor Revival cottage
Moffitt Cottage
Large Renaissance Revival house
72
Iowa Citv Historic Preservation Handbook
12.8 Prairie School
Although historic buildings of the Prairie School
style are not typical in Iowa City, new buildings
could be constructed based on Prairie School de-
signs. The Prairie School developed in the Mid-
west with Frank Lloyd Wright being its best known
architect. In Iowa City, the Prairie School style
may be combined with the American Foursquare
and Craftsman styles. Houses are characterized
by hip roofs with pitches of 8/12 or less, and rela-
tively simple rectangular massing. The eaves are
deep to provide protection from the sun. The en-
trances may be located at the side of the house or
porch. Large piers, often at the porch, are also
characteristic of this style.
Windows may be double -hung or casement. Com-
monly, multiple tall windows will be installed side -
by -side with a mullion between each window. Al-
though several patterns of divided -lights are possi-
ble, a typical divided -light pattern is nine lights
with the muntin bars located only four to six inches
from the sash. This creates a large center light
with small square lights at the corners. In the case
of double -hung windows, only the top sash will
have divided -lights.
Buildings influenced by the Prairie School are of-
ten stucco or brick with wood or brick banding. If
sided with wood, wide board and batten siding is
often used in lieu of traditional clapboard. At the
upper story window sills, there is frequently wood
or brick banding and a change of materials above
the banding.
Although rare in Iowa City, apartment buildings
influenced by the Prairie School are constructed of
brick, stucco or a combination of the two with or-
namental banding. The roofs may be flat or hipped
as described above. Entrances are often from a
small courtyard.
Stucco Prairie School house with side entrance
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Wood and Stucco Prairie School house
Stucco and brick Prairie School apartment building
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73
Iowa City Historic Preservation Handbook
12.9 Queen Anne
Queen Anne buildings range from the great
"painted ladies" to more modest homes of 1-1/2
stories. They have an asymmetrical building foot-
print with projections and intersecting masses in
the roofs and walls. Roof pitches are at least
12/12 and roofs may be hipped and/or gabled in a
variety of combinations. The gables are empha-
sized with decorative wood shingles and ornate
trim. Round turrets are common on the most
elaborate Queen Anne houses. Facades fre-
quently include a large picture window, slightly
taller than wide, surmounted by a fixed pane of
ornamental glass.
a`) Queen Anne porches are ornate, with turned or
v
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CC a variety of patterns. Porches are large and gra-
n cious, often wrapping around the house.
N
Multi -family buildings in the Queen Anne style
may appear as a large elaborate house or as a
series of simpler houses connected at the side
walls to form a duplex or series of townhouses.
Modest 1 1/2 story Queen Anne house
Large elaborate Queen Anne house
Simple Queen Anne duplex
74
Iowa City Historic Preservation Handbook
12.10 Vernacular
Vernacular buildings tend to be relatively small in
size, reflecting the modest means of their early
occupants. Their massing is often simple and they
are one to two stories in height. Many vernacular
houses have no ornamentation. Other houses
have modest ornamentation that is a simplified
design of whatever "high" style may have been
popular at the time the house was built. The high
style may also influence the massing, roof pitch,
porch design and fenestration of the vernacular
house.
Vernacular house with Queen Anne influence
Stone and clapboard Vernacular house
Vernacular apartment building with Period Revival
influence
N
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Iowa City Historic Preservation Handbook
13.0 Historic Landmarks, Properties, and Districts
13.1 Local Historic Landmarks
*Historic review is only required for changes to properties listed
as Iowa City landmarks.
Year
Iowa City
National
Address
Built
Style
Landmark
Register
Downtown
First Congregational Church
30 N. Clinton St.
1869
Gothic Revival
Sep-96
Jun-73
College Block Building
125 E. College St.
1883
Italianate
Sep-96
Jul-73
Carnegie Library
307 E. College St.
1903
Classic Revival
Jul-01
----
Trinity Episcopal Church
320 E. College St.
1871
Gothic Revival
Sep-96
Dec-74
Franklin Printing House
115 S. Dubuque
1856
Commercial Brick
Sep-96
Apr-86
Van Patten House
9 S. Linn St.
1873
Victorian Eclectic
Sep-96
Jan-83
Hohenshuh Mortuary
13 S. Linn St.
1917
Colonial Revival
Oct-00
----
Old Post Office
28 S. Linn St.
1904
Classic Revival
----
Apr-79
Paul --Helen Building
207-215 E. Washington
1910
Commercial Brick
Sep-96
Apr-86
Englert Theatre
221 E. Washington St.
1912
Renaissance Revival
----
Aug-01
Boerner-Fry Company/
Davis Hotel
332 E. Washington St.
1899
Classic Revival
----
Jan-83
University Landmarks
Old Capitol
Pentacrest
1842
Greek Revival
----
May-72
Pentacrest
Capitol St. & Iowa Ave.
1902-24
Classic Revival
----
Mar-78
Dubuque/Linn Street Neighborhood
Jackson -Swisher House &
Carriage House
120 E. Fairchild St.
1877
Gothic Revival
Sep-96
Nov-82
Northside Neighborhood
Arthur Hillyer Ford House
228 Brown St.
1908
Mission Revival
----
Apr-86
Charles Berryhill House
414 Brown St.
1868
Italianate
----
May-79
Queen Anne
Bohumil Shimek House
529 Brown St.
1893
Vernacular
----
Dec-91
Emma J. Harvat House
332 E. Davenport St.
1916
Classic Revival
----
May-00
Letovsky-Rohret House
515 E. Davenport St.
1881
Greek Revival
Sep-96
Apr-82
William Bostick House
115 N. Gilbert St.
1851
Greek Revival
Sep-96
Mar-96
Jacob Wentz House
219 N. Gilbert St.
1847
Greek Revival
Sep-96
Aug-74
Windrem House
604 Iowa Ave.
ca 1850
Vernacular
Sep-96
Sep-77
St. Mary's Church and
Rectory
220 E. Jefferson St.
1867
Gothic Revival
Sep-96
Feb-80
Park House Hotel
130 E. Jefferson St.
1852
Sep-96
Dec-78
St. Mary's Rectory
610 E. Jefferson St.
1854
Greek Revival
Sep-96
Jul-95
Economy Advertising
Company
119-123 N. Linn
1923
Commercial Brick
Sep-96
Apr-86
127-131 N. Linn and
Union Brewery
221-227 E. Market
1856-57
Italianate
Sep-96
Apr-86
Schindhelm--Drews House
410 N. Lucas St.
1855
Greek Revival
Sep-96
Jan-94
North Presbyterian Church
20 E. Market St.
1856
Romanesque Revival
Sep-96
Aug-73
Henry C. Nicking House
410 E. Market St.
ca 1854
Vernacular
Sep-96
Apr-75
Vogt-Unash House
800 N. Van Buren St.
1889
Queen Anne
----
Jul-78
76
Iowa City Historic Preservation Handbook
Goosetown Neighborhood
F. X. Rittenmeyer (Burger)
House
Czecho Slovakian
Association Hall
Cavanaugh-Zetek House
Isaac Wetherby House
College Hill Neighborhood
Thomas C. Carson House
Linsay House
Stevenson -Baker House
Crum -Overholt House
Haddock House "The Crag"
630 E. Fairchild St.
524 N. Johnson St.
704 Reno St.
611 N Governor St
906 E. College St.
935 E. College St.
30 S. Governor St.
726 Iowa Ave.
802 E. Washington St.
Longfellow Neighborhood
Oakes -Wood House 1142 E. Court St.
Summit Apartment Building 228 S. Summit St.
Manville Heights Neighborhood
Ned Ashton House 820 Park Rd.
Kirkwood Neighborhood
Plum Grove
Bethel AME Church
Clark House
Samuel Kirkwood House
Westside Neighborhood
Cyrus S. & Georginia
Ca 1875
Anglo-Italianate
1900
Colonial Revival
1870
Gothic Revival
Ca.1860
Vernacular
1875
Second Empire
1893
Queen Anne
1882
Italianate
ca 1840
Greek Revival
1891
Gothic Revival
1858 Italianate
1916 Prairie/Sullivan
1947 Modern Movement
1030 Carroll Ave.
1844
Greek Revival
411 S. Governor St.
1868
Vernacular
829 Kirkwood Ave.
1874
Victorian/Italianate
1101 Kirkwood Ave.
1864
Anglo-Italianate
Ranck House
747 W. Benton St.
Wilbur D. and Hattie
Cannon House
320 Melrose Ave.
A. W. Pratt House
503 Melrose Ave.
Billingsley -Hills House
629 Melrose Ave.
Near Southside Neighborhood
Johnson County Courthouse
S. Clinton St.
C.D. Close House
538 S. Gilbert St.
Chicago, Rock Island & Pa-
cific Railroad Passenger
Station
115 Wright St.
Outlying Properties
Rose Hill 1415 E. Davenport St.
McCollister Farmstead 2460 S. Gilbert St.
Sylvanus Johnson House 2155 Prairie du Chien
Sep-96
Sep-96
Sep-96
Sep-96
Sep-96
May-03
May-03
May-03
Sep-96
Sep-96
Sep-96
Sep-96
ca 1905 Late Queen Anne Aug-02
1884
Italianate
Sep-96
Oct-94
1885
Italianate
Sep-96
Feb-83
Italianate/
1870
Greek Revival
Sep-96
Jan-83
Richardsonian
1901
Romanesque
----
Mar-75
1874
Italianate
Sep-96
May-74
1898
Victorian Eclectic
Sep-96
Dec-82
1849
Greek Revival
Sep-96
Apr-92
1864
Anglo-Italianate
Sep-96
Oct-76
----
-----
----
Dec-90
77
Iowa City Historic Preservation Handbook
13.2 Johnson County Historic Properties
"Historic review is not required for changes to the properties listed below.
Washington Township Center High School
Coralville Public School
Coralville Union Ecclesiastical Church
Secrest Octagon Barn
a First Johnson County Asylum
-C First Welsh Congregational Church
c Sutliff Bridge
L St. John's Lutheran Church
Y Old State Quarry
L
E White General Store and House
-v
Oxford Commercial Historic District
J
L) Miller Round Barn
o Roberts Octagon Barn
2 Cottage at Rock and Dubuque Streets
Henyon--Kasper--Duffy Barn
o Saints Peter and Paul Catholic Church
Buresh Farm
Stone Academy
Polygonal Barn
Location
City
National
Register
Northeast of Amish
Amish vicinity
Dec-79
402-404 5th Street
Coralville
Jan-74
405 2"d Avenue
Coralville
Apr-77
West of Downey
Downey vicinity
Nov-74
West of Iowa City
Iowa City vicinity
Aug-78
Five miles southwest of Iowa City off IA 1 Iowa City vicinity
Apr-77
Sutliff Road over Cedar River
Iowa City vicinity
May-98
North of Kalona
Kalona vicinity
Apr-77
0.1 miles south of south end of Rice
North Liberty
Feb-98
Ridge Lane NE
10 West Cherry Street
North Liberty
Jan-84
Roughly, Augusta Ave. between Wilson
Oxford
May-97
Street and Center Street
CR F62
Sharon Center
Jun-86
CR W62
Sharon Center
Jun-86
Route 4, Box 3
Solon
Jan-85
2520 IA 1 NE
Solon
Jan-04
1165 NE Taft Avenue
Solon
Jul-97
West of Solon off IA 382
Solon vicinity
Apr-77
2 miles north of Solon on Hwy 1
Solon vicinity
Jan-01
Lincoln Township off US 6
West Liberty
Jun-86
78
Iowa City Historic Preservation Handbook
13.3 Historic and Conservation Districts
*Historic review is only required for properties within Iowa City Local Districts.
South Summit Street Historic District
Woodlawn Avenue Historic District
Brown Street Historic District
Moffitt Cottage Historic District
East College Street Historic District
College Green Historic District
Governor -Lucas Conservation District
Longfellow Historic District
Clark Street Conservation District
Dearborn Street Conservation District
College Hill Conservation District
Longfellow -Moffitt Cottage Combination
Historic District
Brown Street Historic District (Increase)
Jefferson Street Historic District
Address
Roughly 300-800 blocks of South Summit
Street
Irregular pattern along Woodlawn Avenue
Roughly Brown Street from west of Linn
Street to Governor Street and adjacent parts
of intersecting streets
1322-1330 Muscatine Avenue
Roughly bounded by Muscatine Avenue,
Summit, Washington, and Burlington Streets
Roughly bounded by Burlington, Summit,
Washington, and Van Buren Streets
Roughly bounded by Burlington, South Lu-
cas, South Governor and Burlington Streets,
and the Iowa Interstate Railway
Roughly bounded by Court and Rundell
Streets, Sheridan Avenue, and the west
boundary of Longfellow School
Roughly 400-800 blocks of Clark Street, and
portions of Roosevelt and Maggard Streets
Roughly 500-900 blocks of Dearborn St, and
800-900 blocks of Rundell Street
Roughly bounded by Iowa Avenue, Johnson
and Burlington Streets, and Muscatine Ave-
nue
Combines the previous, separate Longfellow
and Moffitt Cottage Historic Districts
Roughly 500-800 blocks of East Ronalds
Street
Portions of 100-400 blocks of East Jefferson
Portions of Melrose Avenue, Melrose Court,
Melrose Historic District Melrose Circle, Brookland park Drive, Brook -
land Place, and Myrtle Avenue
Gilbert -Linn St. (Northside) Historic District Portions of 300-600 North Gilbert and North
Linn Streets
Iowa City Local National
District Register w
0
Mar-84 Oct-73 =
N
Mar-84 Mar-79 0•
r
v
May-94 Sep-94 B
m
May-95 May-93
0
0
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Mar-97 Jul-97 m'
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v
a
Mar-97 Jul-97
0
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May-01 ----
Jan-02 Sep-02
Jan-02 ----
Jan-02 ----
May-03 ----
Jun-03 ----
Dec-04 Sep-04
---- Sep-04
---- Dec-04
May-09 Apr-05
79
Iowa City Historic Preservation Handbook
14.0 Historic and Conservation Districts Description and History
14.1 Longfellow Neighborhood Districts
Governor -Lucas Street Conservation District
Turn -of -the -century houses and tree -lined streets characterize the Governor -Lucas
Conservation District with houses dating from the late 19th century through the 1930s.
Governor Street's unusually wide lots and deep set -backs on the east side create a sense of
spaciousness that is similar to portions of Summit Street and not found in most Iowa City
residential districts. Examples of vernacular house forms and architectural styles from the
1860s through the 1930s are present, with many good examples of Craftsman Style, American
Four -Squares and Bungalows intermixed with earlier Victorian styles.
The Governor -Lucas Conservation District was Iowa City's first conservation district. It includes
0 139 residential properties and one church, the Bethel AME Church (National Register). Unlike
c other historic and conservation districts in Iowa City, owner -occupants make up a minority of
0
residents — slightly less than one-third. The neighborhood saw its transition to rental occupancy
Z begin in 1961 when the majority of the district was rezoned for dense multifamily occupancy. In
a�
othe wake of this rezoning, blocks to the west saw houses razed and new apartment buildings
U erected. Measures to designate the area for protection began with a reconnaissance survey of
the neighborhood and blocks to the west completed in 1990. In 1996 and 1998, a smaller area
was included in the intensive level survey completed for the Longfellow Neighborhood. In May
Cn 2000, owner -occupants and long-term renters, aware of the pressure to construct dormitory -
style apartment buildings in the neighborhood, successfully petitioned the City Council to down-
0
zone the neighborhood. Work on establishment of a conservation district paralleled the
rezoning measure.
Summit Street Historic District
The neighborhood's three blocks include Iowa City's best collection of well-preserved Victorian -
era and turn -of -the -century American Revival style residences. Houses along the broad street
are set well back on deep, wooded lots with many properties containing carriage houses,
fences, carriage blocks, and historic landscaping features. The ambiance of the Summit Street
Historic District is park -like. Construction dates for the district's building stock primarily range
from the 1860s-1910s.
The Summit Street blocks were recognized through the years as having a sense of time and
place. Individual houses were prominently featured in Margaret Keyes' early book on Iowa City
architecture. Early threats to the neighborhood posed by apartment house construction were
thwarted by neighborhood activism and subsequent down zoning and historic district protection.
In 1973, residents sought and received a designation for the area as a National Register
historic district — the first historic district established in Iowa City. A decade later, the district
was also the first to be listed as a local historic district, along with the Woodlawn Avenue
Historic District.
The health of Summit Street is evidence of the long term community benefits fostered by
historic preservation. A neighborhood that was threatened with redevelopment in the 1960s is
now a stable and well -regarded residential anchor for the near east part of the city. Buildings in
the district have been rehabilitated at a rate commensurate with or ahead of other older
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Iowa City Historic Preservation Handbook
neighborhoods in the city. Property values have kept pace with or exceeded appreciation in the
balance of the community. Traffic increases are still perceived by current residents; and others,
as the principal threat to the neighborhood.
For many, the Summit Street Historic District is an example of the idiom "If it ain't broke, don't
fix it!" The area has a well -recognized historic image in the community and the district's o
addresses are sought after in spite of an increasingly competitive market for preserved historic
residences
0
1
Clark Street Conservation District 0'
The Clark Street Conservation District includes residences constructed as worker housing for a
the nearby Kelly Manufacturing Company and Oakes Brickworks during the late 19th and early o
20th centuries as well as homes built for what became an early 20th-century commuter suburb. N
Modest one- to two-story houses in styles and vernacular house forms typical of the period
characterize the district. Scattered examples of earlier domestic architectural styles and forms'
0
appear on the west edge adjacent to the Summit Street Historic District. Narrow, tree -lined 0
streets contribute to the historic sense of time and place of this neighborhood. o
At the time the Clark Street Conservation District was designed in 2001, 57 of the district's 76
properties, approximately 75 percent, were considered to be contributing to the character of the o
conservation district. 0
Longfellow Historic District
The Longfellow Historic District includes portions of the original Rundell Addition, Oakes
Addition and East Iowa City. The northern fringe of the Longfellow neighborhood was
developed before World War I while the balance of the area extending south of Court St. and
east of Clark St. was not fully developed until World War II. Good examples of vernacular
house forms and architectural styles from before and after World War II survive throughout the
neighborhood, with construction occurring c. 1910 — 1940. Facing blocks have a homogeneous
scale of buildings with uniform setbacks. The neighborhood has a high level of physical
integrity, including many historic garages. The Longfellow Elementary School is an important
landmark anchoring the neighborhood, which was originally conceived as a streetcar suburb.
The former Moffitt Cottage district, combined with the Longfellow district in 2003, is made up of
the group of five buildings in the 1300 block of Muscatine Avenue. These are single-family, one
or one -and -a -half story, stone -veneered buildings with Period House stylistic forms and details
in the English cottage variation. They were constructed in 1939 and 1940.
Since 1992, major progress has been made on the preservation objectives for the Longfellow
Historic district. In 1996 and 1998, historical and architectural survey work was completed.
Parallel designation tracks saw the Longfellow Historic District listed as a local ordinance
district in early 2002 and on the National Register later the same year. The Moffitt Cottage
district was combined with the Longfellow Historic District in 2003. Fears of residents
expressed in 1992 regarding incompatible exterior remodeling of pristine bungalows and period
cottages has been replaced by deliberate planned historic rehabilitations. Removal of the
district's small period garages has been slowed, and where replacement buildings have been
erected the design review has mitigated their loss by requiring more compatible design for new
garages. The continuing loss of original garages is a challenge for the neighborhood.
81
Iowa City Historic Preservation Handbook
Dearborn Street Conservation District
The Dearborn Street area developed primarily during the 1930s and post -World War II years. A
number of the district's houses are based on standardized small house plans popularized
during the pre -World War II period. By this time the automobile was more common and many
o homes have small historic garages that are similar to the houses or are incorporated into the
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house structure.
The area was surveyed in 1996. A number of the houses have been altered, diminishing the
neighborhood's architectural integrity and eligibility for designation as a historic district. At the
time the Dearborn Street Conservation District was designated in 2002, 105 of the district's
147 properties, approximately 75 percent, were considered to be contributing to the character
of the conservation district.
College Hill Neighborhood Districts
College Hill Conservation District
The district adjoins three historic districts — College Green, East College Street, and Woodlawn.
The neighborhood takes its name from the topographic rise in the center of the area occupied
by College Green Park and the ladies seminary that was once located in the park. The
neighborhood includes a mix of single-family and multifamily residential buildings dating from
the late 19th through the early 20th century. The neighborhood traditionally had a strong
association with the University, housing students in rooming houses, in scattered fraternity and
sorority houses, and more recently, in apartment buildings. Private residences housed
University faculty and staff as well as many business and civic leaders. Construction of
apartment complexes and the unsympathetic renovations of other buildings have diminished
the appearance of some of the streetscapes.
The College Hill Conservation District was evaluated in two separate surveys — the intensive
level survey of the College Hill Neighborhood completed in 1994 and the reconnaissance level
survey of Iowa Avenue in 2003. The district became a local conservation district in 2003. The
College Hill Conservation District was one of the most seriously damaged neighborhoods in the
tornado of 2006.
College Green Historic District
The College Green Historic District is a residential area in east Iowa City deriving its name from
a square -block park known as College Green. Substantial houses were built surrounding the
park, their styles typical of house forms and designs from late 191h and early 20th century (c.
1860 — 1930s). The block where the green is located was the site for an unsuccessful effort to
establish the "Iowa Female Collegiate Institute" college in the 1850s and reverted to park use
thereafter. College Green Park serves as a neighborhood focal point. The neighborhood has a
strong association with the development of the University with residences in the area having
served as homes for faculty and staff as well as rooming houses.
The College Green Historic District is a residential area in east Iowa City deriving its name from
a square -block park known as College Green. It includes the residential neighborhood
including houses which faces College Green and those structures in an area extending south
and east of the green. The district enjoys a high degree of visual continuity through similar
scale and massing (single family residential), age (1860s — 1930), and stylistic influences
82
Iowa City Historic Preservation Handbook
(Nineteenth Century Revival Styles and early Twentieth Century Styles)... The district retains
its mature tree canopy.
The College Green Historic District was one of two residential districts identified in the historical
and architectural survey of the College Hill Neighborhood completed in 1994. In 1997 the
district became a local historic district, and a short time later was listed on the National Register
o
of Historic Places The mature landscape elements which contributed to the identity of the
district in and around College Green Park were destroyed or damaged in the tornado of 2006
0
East College Street Historic District
0'
Substantial houses were built along the street, primarily between 1880 and 1920, manifesting
a
the architectural styles and vernacular house popular in Iowa City during those decades.
o
Queen Anne Revival, Craftsman and American Four -square house forms predominate in three-
�
quarters of the district's 28 buildings. Several properties in the district have historical
associations with early business leaders, while others were faculty members at the University.
R.
The architectural styles, period of construction, similar lot setbacks and siding, along with the
0
0
presence of a high canopy of mature trees unify the district.
The East College Street Historic District was one of two districts identified in the historical and
architectural survey of the College Hill Neighborhood completed in 1994. In 1997 the district
o
became a local historic district, and a short time later was listed on the National Register of
0
Historic Places Several buildings and the mature landscape elements along East College Street
which contributed to the identity of the district were damaged in the tornado of 2006 but most in
D
the district avoided serious destruction.in
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14.3 Woodlawn Historic District
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Woodlawn is an enclave of 14 well-preserved late 19 and early 20 century residences (c.
1880 — 1900). Cohesion, seclusion and continuity of form are the principal characteristics
which make the Woodlawn Historic District significant in the architectural and natural landscape
of Iowa City. This essentially late 19th Century enclave of upper middle-class residential
structures is distinguished by its large lots, deep setbacks, and the presentation and by
prominent front gables, each with its own particular decorative details, to the narrow, unpaved
oval of Woodlawn Avenue. "Governor's Square" located southwest of Woodlawn, was
originally planned as the location for the governor's residence. After the capital relocated to
Des Moines in 1857, these plans were abandoned and Governor's Square was replatted for
house lots. In 1889 S.M. Clark's Sub -division, which contains Woodlawn, was platted east of
the terminus of Iowa Avenue. Beginning in the 1880s houses were built along Woodlawn
Avenue's spacious lots featuring Gothic Revival, Italianate, Queen Anne, Stick/Eastlake, and
Tudor Revival styles. Through the years, a Woodlawn address, like that of South Summit
Street, connoted prestige.
The Woodlawn Historic District was listed on the National Register in 1979 and became a local
historic district in 1984. Several buildings and mature landscape elements on Woodlawn were
seriously damaged in the April 2006 tornado.
83
Iowa City Historic Preservation Handbook
14.4 Northside Neighborhood Districts
Brown Street Historic District
This Historic District is located along the north edge of Iowa City's "North Side" neighborhood
and is comprised of residences representative of architectural styles, house forms, decorative
details, and materials used in Iowa City from c. 1850 - 1935. Brown Street residences range in
size from small one and two-story gable cottages to medium sized Gabled -Ell Cottages and to
large hipped -roofed, two-story Four -Squares, and sprawling asymmetrical organic cottages,
both one and two-story forms. The district's record of architectural styles, the densely
landscaped private lawns, and the intact brick street create a distinct sense of place. This
visual quality as well as the historic importance of Brown Street as an early transportation route
and its association with faculty and staff of the University all serves to create a distinct
neighborhood identity and historic significance.
Since the 1960s this area of Iowa City has been the subject of intense debate and
Cn
o neighborhood planning. During the 1980s, efforts were unsuccessful to designate a large
o mixed -use historic district in the North Side that included portions of Brown Street. After
c° completion of the 1992 Historic Preservation Plan, the Historic Preservation Commission made
Z
cits first priority the designation of Brown Street and portions of adjacent side streets (Bella
o Vista, Linn, Gilbert, Van Buren, Johnson, Dodge and Governor) as a separate National Register
U
v and local ordinance historic district. These efforts were successfully completed with strong
neighborhood support in 1994 following considerable debate, organizing, and promotion efforts
U
o led by the Commission. In 2004, the district boundaries were expanded to include a section of
Ronalds Street. Changing housing trends and the appeal of older houses as single-family
residences have demonstrated the capacity of North Side neighborhoods such as Brown Street
2 to rejuvenate and prosper.
v
Northside Historic District (Gilbert -Linn Street National Register District)
The Northside Historic District (Gilbert -Linn Street National Register District) is locally significant
because it derives significance from its association with an important era of population growth
and intense residential development in Iowa City's North Side residential area at the end of the
19th century and the beginning of the 20th century. Iowa Citians built private residences for
their growing families while small-scale developers constructed housing to meet the demand of
a brisk rental market during these decades. The Northside Historic District's (Gilbert -Linn
Street National Register District) organic development followed this pattern of residential
development.
Additional significance is gained from the fact that the Northside Historic District (Gilbert -Linn
Street National Register District) represented a cross section of middle and upper income
households with prominent business and professional leaders living next door to middle income
and working class families. Individuals who resided in this neighborhood highlight several
important themes in the city's history in the decades before and after the turn of the 20th
century. Primary among these were the growing prosperity of Iowa City's German -American
and Bohemian -American communities and the growth in importance of the State University of
Iowa. The construction of new houses, the brisk rental of existing houses, and the infill
construction pattern that produced an extremely dense residential district from ca. 1895 through
ca. 1925 testify to the neighborhood's significance.
84
Iowa City Historic Preservation Handbook
Northside Historic District (Gilbert -Linn Street National Register District) also exhibits a
representative collection of the residential architectural styles and vernacular house forms that
appeared in Iowa City neighborhoods from the 1860s through the 1930s. From modest Bohemian
cottages to pattern book houses and elaborate multi -story mansions, the Northside Historic District
(Gilbert -Linn Street National Register District) reflected the architectural character and best local
residential building practices of the period. The District derives added architectural significance
because of the large number of well-preserved residences designed by Iowa City's most
productive early 20th century architect, O.H. Carpenter, between 1900 and 1918.
The combination of visual qualities and historical associations gives the Gilbert -Linn Street
Historic District its distinct identity and significance.
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Iowa City Historic Preservation Handbook
15.0 Historic and Conservation Districts (Citywide map)
7
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86
Iowa City Historic Preservation Handbook
16.0 Longfellow Neighborhood Districts (Maps)
16.1 Governor -Lucas Street Conservation District
COLLEGE ST
l 1. 1
BURLINGTON ST
F
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I E � u1a I I i
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1 314 `
314
........ ..._ 328
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330 333 ...........................
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Iowa City Historic Preservation Handbook
16.2 Summit Street Historic District
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Key Contributing
Contributing
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Non -historic
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BURLINGTON ST
'..� 314
325
330
405
411
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536
540
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602 i
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730
1011
802
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88
Iowa City Historic Preservation Handbook
16.3 Clark Street Conservation District
H
BOWER
50.5
506 '
511'
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515
512
5�1 �
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89
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Iowa City Historic Preservation Handbook
16.4 Longfellow Historic District
9
...... ..... . . . . ............
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777
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COURT ST
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421
421
424 423 425
425 426
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435 11509
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505 504 503
509 507 510
512
515 >�5 14 513 516 515 ,
HENRY 511) SIR 517 520 519 522
525 523 123
LONGFELLOW 603 528
603
602
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626 1316 624 62 1,
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701
701 702 1425 1501
705 708
70Q 705 708 707 708
711 ;712 711 11-1
SEYMOUR AVE
718 717 718 717 718
721 722 L4
721 722 721 2 2
723 728 727 7- 727 728
- 712
7-3-5 '734 7311 732 731
738
741
746 741 741 742
747 747 748
748 747 74
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SIIERIDAN AVE
LeLegend80 I [__ 1203 1211 1221 111
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Key Contributing
Contributing
—j—
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Non -historic
90
Iowa City Historic Preservation Handbook
16.5 Dearborn Street Conservation District
619 1 1 612
.. ........... . . . . . . ......
717
'28
711
731
732
739
738
729
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17.0 College Hill Neighborhood Districts (Maps)
17.1 College Hill Conservation District
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Iowa City Historic Preservation Handbook
17.2 College Green Historic District
WASHINOTON ST
BLIRLNGTON ST
17.3 East College Street Historic District
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18.0 Woodlawn Historic District (Map)
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94
Iowa City Historic Preservation Handbook
19.0 Northside Neighborhood Districts (Maps)
19.1 Brown Street Historic District
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19.2 Northside Historic District
ALDS ST
628
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624 _.
619 U20 I:'.
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333
51.4 4 51
512 5 l I
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k.:r't e �rlj
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Non-contributing
Non -historic
96
Iowa City Historic Preservation Handbook
Appendices
A.1 Definitions
Addition: A structure that is attached to an existing building and that increases the size of its
D
footprint. Rooms, new porches, decks and ramps are examples of additions.
Alteration: A modification to the exterior of a building that does not increase the building footprint.
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Certificate of Appropriateness: The document that is evidence of approval by the Historic
Preservation Commission of a proposal to make a change in appearance. A Certificate of
Appropriateness must be obtained before a Regulated Permit may be issued.
Certificate of No Material Effect: The document, issued in lieu of a Certificate of Appropriateness,
that signifies that the work contemplated in the application will have no effect on any significant
features of a historic landmark, or property within a historic or conservation district.
Change in appearance: Any alteration, addition, demolition, new construction or other change that
modifies the site of or exterior of a structure on a landmark property or a property located within a
district.
Conservation district: An area that contains abutting pieces of property under diverse ownership,
the built portions of which by majority are at least fifty (50) years old and which:
1. According to a historic resources survey, no more than sixty percent (60%) of the primary
structures and/or sites are of a quality, integrity and condition that qualify as contributing to a
National Register of Historic Places multi property listing; and
2. Represent the traditional character of Iowa City neighborhoods through architectural
characteristics, building scale, building setback, and streetscape design; or
3. Exemplify a pattern of neighborhood settlement or development significant to the cultural
history or tradition of Iowa City; or
4. Represent a unique or unusual physical character that creates distinctiveness.
Contributing property. A property within a district that is an integral part of the historic context and
character of the district.
Demolition: Any act or process that destroys a structure or building or any architecturally
significant component of a structure or building.
District: A historic district or conservation district.
Exception: A statement in the Iowa City Guidelines that allows for a less stringent application of a
historic preservation guideline for specified properties, usually buildings that are within a
conservation district, noncontributing or non -historic.
Exterior features: The architectural style, general design and arrangement of the exterior of a
building, including the kind and texture of building material and the type and style of all windows,
doors, light fixtures, trim and brackets, porches, chimneys, signs and other appurtenant fixtures.
Highly visible from the street: A building, object or feature is "highly visible from the street" if it can
be easily noticed or viewed from the street right-of-way. Such features are usually located within
20 feet of the street -facing facade of a primary building.
97
Iowa City Historic Preservation Handbook
Historic district: An area that does not exceed 160 acres in area, and contains abutting pieces of
property under diverse ownership which:
1. Are significant to American and/or Iowa City history, architecture, archaeology and culture; or
2. Possess integrity of location, design, setting, materials and workership; or
U
C: 3. Are associated with events that have made a significant contribution to the broad patterns of
a our history; or
a
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4. Are associated with the lives of persons significant in our past; or
5. Embody the distinctive characteristics of a type, period, method of construction; represent the
work of a master; possess high artistic values; represent a significant and distinguishable entity
whose components may lack individual distinction; or
6. Have yielded or may likely yield information important in prehistory or history.
Historic landmark: Any building, structure, object, archaeological site, area of land or element of
landscape architecture with significance, importance or value consistent with the criteria contained
in subsections one through six of the definition of "Historic District," which has been designated as
a historic landmark by the Iowa City City Council.
Key property: A property that is individually eligible to be listed on, or is listed on the National
Register of Historic Places, and/or is designated a historic landmark. A list of key properties is
available from the Preservation Planner.
National Register of Historic Places (NRHP): A list of U.S. places of significance in American
history, architecture, archeology, engineering and culture on a national, state, or local level and
maintained by the U.S. Department of the Interior.
Noncontributing property: Any property within a district that is not listed as a contributing property.
Non -historic property: Any noncontributing property within a district that was less than 50 years old
at the time the district was designated and/or was not constructed during the district's period of
significance.
Outbuilding: A building on a lot that is smaller than the primary building and typically located
behind the primary building. Examples of outbuildings are garages, barns, garden sheds,
greenhouses and gazebos.
Primary building: The inhabited building on a lot that is normally the largest and faces the street.
Most often a house is the primary building in historic and conservation districts.
Property: The site features, buildings, landscaping, and other structures that are located within the
property lines of a particular lot or parcel.
Setback addition: An addition built behind the existing structure, opposite the street facade, that
has a setback of eight or more inches from the side walls and a roof that is no higher than the
existing roof. When viewed from the street, the addition must be narrower and no taller than the
existing structure. No part of the setback addition is visible on the street elevation.
Street elevation: All roof and wall surfaces that face the street. These would be depicted in an
architectural drawing called a street "elevation."
Structure: Any man-made feature that has been constructed on a site or property.
98
A.2 Architectural Terms
Iowa Citv Historic Preservation Handbook
Details of Classical Revival
porch
t
.,
. _ r
Details of Eclectic brick house
Eave
Baluster: An upright member supporting a railing or
banister.
Soffit Balustrade: A railing composed of a handrail D
supported by balusters. In exterior applications, rn
Frieze board balustrades typically have a top and bottom rail. a
Band board: A continuous horizontal wood band onCn
Columns an exterior wall
Barge board: A wide ornamental fascia board hung
from the eaves or in a gable.
Belt course: A continuous horizontal masonry band on
an exterior wall.
Pier Brackets: Supporting members of wood, stone or
metal often used for both decorative and structural
Balustrade purposed and generally found under projecting
features such as eaves, cornices, bay windows, and
Skirt board canopies.
Canopy: A small projecting roof structure that shelters
Skirting an entrance.
Casement window: A window that is hinged on one
side and swings in or out to open.
Clapboards: Wood siding of overlapping horizontal
boards.
Frieze board Column: A slender vertical element that supports part
of a building or structure.
Bracket Corner boards: Vertical trim boards installed at the
Lintel outside and inside corners of a wall covered with
Double -hung wood siding.
window Cornice: The projecting moldings forming the top
band of a wall, eave, or other element
Sill Cornice return: The extension of a cornice in a new
Belt Coarse direction, especially where the rake of a gable end
returns horizontally a short distance.
Quoins Dentil: In the cornice of a classically detailed building,
one of a series of small blocks that alternate with a
blank space.
Divided -light: A window in which the glass is divided
into several small panes with muntin bars. The
nomenclature for divided -lights is the number of lights
in the upper sash over the number of lights in the
lower sash, e.g. 3/1.
99
Iowa City Historic Preservation Handbook
El
Details of Craftsman house
Gambrel roof
Double -hung window: A window with two sashes that
Rake board slide past each other vertically.
Bracket Eave: The part of a roof that projects beyond the wall
below the roof.
Facade: Any of the exterior faces of a building.
Wall shingle
Typically refers to the side that faces the street and
has the main entrance.
Rafter tails
Fascia board: A finish board attached to the ends of
Band board
roof rafter tails.
Clapboards
Fenestration: The arrangement of doors and windows
in a building facade.
Corner board
Fish -scale: A pattern created by rows of shingles with
Column
curved bottoms.
Frieze board: A flat board that is located on the
vertical plane and directly below the soffit.
Front -gabled: Refers to a building with a gabled roof
Water table
board
in which the main entrance is located on the facade
that has the sloping eaves and gable.
Foundation
Gable: The triangular upper portion of a wall beneath
a gabled roof.
Gabled roof: A roof composed of two sloping planes
that meet at a ridge.
Gambrel roof: A roof composed of two sloping planes
of different pitches on either side of a ridge; the lower
plane is the steeper one.
Hip roof: A roof with sloping planes on all sides that
meet at a central ridge or point.
Licht: A pane of glass in a window or door.
Lintel: A horizontal beam bridging a window or door
opening to carry the weight of the wall above the
opening.
Mullion: The vertical dividing members between
grouped windows.
Muntin bars: The vertical and horizontal strips or grid
that separate the panes of glass in a window sash or
door.
Pier: The square or rectangular masonry or wood post
projecting less than a story above the ground that
carries the weight of a structure down to the
foundation.
IDN'
Iowa City Historic Preservation Handbook
Italianate house with gabled
roof
°e*`
Gable of Queen Anne house
Double -hung windows with
wood storm windows
Entrance with portico and
Prairie -style divided -lights
Pilaster: A shallow column that is mounted to a wall.
Pediment: The triangular gable end of a classical
building, or the same form used elsewhere.
Cornice
Portico: A projecting, classical style porch supported �D
Frieze board by columns.
CD
Brackets Quoin: A large, rectangular block of stone used to a
Cornice physically and aesthetically anchor an outside corner `cn°
return of a building.
Rafter tail: The end of a roof rafter that is exposed
when the eave is not enclosed.
Rake: The sloped edge of a gabled roof.
Rake board: A board installed at the gable end of a
Barge Board roof parallel to the roof slope.
Fish -scale Sash: A wood or metal frame composed of rails and
Band board stiles into which glass window panes (lights) are set.
Balustrade Side -gabled: Refers to a building with a gable roof in
which the main entrance is located on the facade that
has the straight eaves and sloping roof.
Sidelight: A window located next to a door.
Casing Sill: The bottom member of a window frame.
Muntin bars Skirt board: The wide flat board installed below a
Light porch or deck floor to conceal the floor structure.
Skirting: The screen composed of lattice or slats
Sash within a rectangular frame, and installed between
Mullion porch or deck piers.
Sill Soffit: The exposed and finished underside of a roof
overhang.
Transom: A small window located over a door or
another window.
Tuckpointing: Refilling deteriorated mortar joints with
fresh mortar.
Transom
Water table: A molding or projecting sloping shelf
located at the bottom of a wall that is designed to
Sidelight divert runoff water away from the masonry foundation
below it.
101
Iowa City Historic Preservation Handbook
A.3 Historic Preservation Documents
Preservation Plan
Iowa City Historic Preservation Plan
Cn
a>
L) Iowa City Historic Preservation Plan —Appendices
c
a�
a
a
Surveys and Evaluations of Iowa City Historic Neighborhoods
Survey and Evaluation of the Manville Heights Neighborhood
Survey and Evaluation of the Central Business District
Survey and Evaluation of the Goosetown Neighborhood
(Original Town Plat Phase III)
Survey and Evaluation of the Original Town Plat Phase II
Survey and Evaluation of the Longfellow Neighborhood I & II
Survey and Evaluation of a Portion of the
Original Town Plat of Iowa City (Phase 1)
Survey and Evaluation of the Dubuque/Linn Street Corridor
Survey and Evaluation of College Hill Neighborhood
Brown Street Historic District
Reconnaissance Surveys
Reconnaissance Survey of the Manville Heights Neighborhood
Reconnaissance Survey of Iowa Avenue in the
College Hill Neighborhood
Governor -Lucas Street Conservation District Site Information Form
Historic District Summaries
East College Street Historic District
College Green Historic District
Moffitt Cottage Historic District
Brown Street Historic District
Feasibility Studies
Montgomery -Butler House Feasibility Study Report
Feb 2008 Svendsen Tyler, Inc.
Clarion Associates LLC
Feb 2008 Svendsen Tyler, Inc.
Clarion Associates LLC
Feb 2010 Svendsen Tyler, Inc
Apr 2001
Svendsen Tyler, Inc.
June 2000
Svendsen Tyler, Inc.
June 1999
Svendsen Tyler, Inc.
July 1998
Molly Myers Naumann
Apr 1997
Tallgrass Historians
July 1996
Molly Myers Naumann
July 1994
Tallgrass Historians, Inc.
Jan 1994
Svendsen Tyler, Inc.
Dec 2008 Svendsen Tyler, Inc.
Jan 2003 Historic Preservation Commission
Aug 2000 Historic Preservation Commission
Nov 1996 Arborgast & Eckhardt
Nov 1996 Arborgast & Eckhardt
Nov 1996 Jan Nash
Jan 1994 Svendsen Tyler, Inc.
Sep 2001 Svendsen Tyler, Inc.
National Register of Historic Places
The National Register of Historic Places Registration Forms for historic landmarks and districts in Iowa City are
available from the Preservation Planner in the Department of Planning and Community Development.
IDW