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Affordable Housing Design Guide City of Iowa City A ffordable Housing Design Guidelines Revised 08/2012 Community Development City of Iowa City 410 E. Washington Street Iowa City, IA 52240 TABLE OF CONTENTS 1 PURPOSE APPLICATION & REVIEW 2 PROVISION A: BUILDING LOCATION PROVISION B: BUILDING MASS, SCALE & ROOF PROVISION C: PEDESTRIAN ACCESS PROVISION D: INDIVIDUAL IDENTITY 3 PROVISION E: BUILDING ENTRANCE & PORCHES 4 PROVISION F: WINDOWS 5 PROVISION G: EXTERIOR BUILDING MATERIALS PROVISION H: GARAGES 6 PROVISION I: VEHICULAR ACCESS PROVISION PROVISION J: UTILITY PLACEMENT PROVISION K: ACCESSIBILITY 10/19/2006 1 AFFORDABLE HOUSING DESIGN GUIDELINES (For New Construction and Substantial Rehabilitation of Single-Family and Duplexes/Attached Single Family Housing Units) PURPOSE: The City of Iowa City’s Affordable Housing Design Guidelines provide a standard framework for developers utilizing Community Development Block Grant or HOME Investment Partnership funding for new construction or substantial rehabilitation of affordable single-family and duplex/attached single family homes. The purpose of the Guidelines is to foster a positive public perception of affordable housing by promoting the rehabilitation and/or design of single- family and attached single family homes in a manner that complements surrounding single- family housing styles, encourages a street-scape which promotes neighborhood interaction, and ensures a quality design for the low income household that will live in the housing unit. APPLICATION AND REVIEW: Prior to obtaining a building permit, a site plan, building floor plans, and building elevations for all single and two family uses funded by the City of Iowa City, shall be submitted to the Department of Planning and Community Development (PCD). PCD shall review plans and shall consult with additional staff representatives from Housing and Inspection Services to ensure conformance with the Design Guidelines. PCD will review the housing design within ten (10) working days of receipt of the above referenced items. Substantial rehabilitation includes any repair, reconstruction, modernization or improvement of a structure, the cost of which equals or exceeds 50% of the market value of the structure either: 1) Before the improvement or repair is started; or 2) If the structure has been damaged, and is being restored, before the damage occurred. These guidelines are in addition to the requirements in the zoning code. If the provisions of these guidelines are inconsistent with one another or if they conflict with provisions found in other adopted ordinances or resolutions, the ordinance or resolution will control. When these guidelines are equally specific or when it is unclear which provision to apply, the ordinance or resolution will control. In addition, there may be private subdivision covenants and restrictions that apply to the project. 10/19/06 2 PROVISION A: BUILDING LOCATION All principal and accessory structures within a City of Iowa City funded development site shall be located on the lot in a manner consistent with the majority of single-family residential structures in the vicinity. PROVISION B: BUILDING MASS, SCALE AND ROOF As viewed from the street on which the front entrance is oriented, the proportion of the building height to width should be compatible with the same proportions of other buildings in the vicinity. Generally, floor to floor height of new structures should relate to adjacent single-family homes; and, the overall height at the eaves should relate to homes within close proximity. The mass, roof pitch and the orientation of the roof ridge for the principal structure shall be compatible with similar residential structures in the vicinity. This requirement does not disallow roof line alterations if necessary for structures subject to rehabilitation so long as the alteration is reasonably consistent with the surrounding neighborhood. False gables and/or dormers may be permitted to ensure the consistency of roof style. PROVISION C: PEDESTRIAN ACCESS A minimum three (3) foot wide paved pedestrian path shall be provided from the primary pedestrian entrance of a single-family home to the driveway and/or sidewalk. Minimum three (3) foot- wide paved pedestrian paths shall be provided from the primary pedestrian entrances of each unit in a duplex/attached single family development to a driveway and/or sidewalk. If the duplex/attached single family units have a shared entrance or both open into the same porch, one path shall be provided. PROVISION D: INDIVIDUAL IDENTITY To the extent possible, multiple financially assisted homes constructed adjacent to, or in close proximity to each other should exhibit distinguishing characteristics - regardless of whether they utilize the same floor plan. Acceptable alternatives may include varying roof pitches and 3 orientation, window arrangement, porch arrangement, varying materials, etc. so long as such alternatives do not conflict with the other design elements addressed within this document. Figure 5: Individual Identity: While a consistent size and scale is exhibited by these two homes utilizing the same floor plan, slight variations in the roof, exterior building materials, details, windows, and door give every unit a distinctive identity. PROVISION E: BUILDING ENTRANCE & PORCHES Each single-family home and duplex unit shall be provided with no fewer than two (2) pedestrian entrances in order to promote pedestrian flow through all portions of the unit and lot unless the developer can illustrate that a second pedestrian entrance is not feasible. 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 treatment that emphasizes main entrances. Simple trim around the doorway does not meet this standard. 1. Single-Family. The primary pedestrian entrance to a new single-family residential home or home to be rehabilitated shall face the street. 2. Duplex and Attached Single Family Dwellings. The primary pedestrian entrance must follow the applicable zoning code. 4 FIGURE 1 A. B. A. Yes. Both units within this duplex have their own entrance but all other building elements simulate a single family home, including size and scale. B. No. The doors of these duplex units face the side yard instead of the street. The side of the building is oriented toward the street. PORCHES Single-family residential homes and duplexes/attached single family dwellings shall have a front porch for new construction if porches are commonly found in the vicinity or are on structures directly adjacent to the subject property. The front porch of structures to be rehabilitated shall be retained or replicated in a manner that is consistent with the original. Front porches on new construction shall be a full facade, partial facade or wrap around porch depending on the design of single-family homes in the vicinity. Alternative porch arrangements may be considered where no predominant style exists. A porch may be omitted from the front building facade only if such an omission is necessary in order to make the unit consistent with surrounding homes of similar architectural style. PROVISION F: WINDOWS On facades which face the street or other public spaces, window openings shall be similar in rhythm, size and proportion to that of the majority of single-family homes in the vicinity. Window proportions shall be compatible with the architectural style of the house. At least 15% of any street facing facade must be windows or pedestrian entryway doors. Windows in garage doors to not count towards meeting this standard, but windows in a garage wall do count towards meeting this standard. 5 PROVISION G: EXTERIOR BUILDING MATERIALS Exterior surface materials, excluding the roof, shall be compatible with that of other buildings in the vicinity except synthetic siding may be used if complementary to the majority of single-family homes surrounding the lot. Exterior walls of buildings that are not primarily masonry or stucco, must have a durable foundation consisting of masonry, stucco, or dressed concrete that extends at least six inches above grade. Exposed, unpainted or unstained lumber may not be used along any facade that faces a street-side lot line. All windows, doors and roof eaves, including roof eaves on porches, must be demarcated with trim. Window and door trim shall be complementary to the majority of single family homes surrounding the lot. For buildings where the exterior wall material used on the side of a building is a different material than what is used on the street-facing wall, the street-facing wall material must wrap around the corners to the sides of the building for at least three feet. PROVISION H: GARAGES & OTHER OUTBUILDINGS 1. A garage is not a required building element. When utilized, attached or detached garages shall be located on the parcel in a manner consistent with the majority of single family homes in the vicinity, except that it is preferable to remove the garage from the front building facade where possible. 2. Detached garages shall be of a similar height as garages on adjacent lots, shall have a roof pitch similar to that of adjacent garages and shall be of a scale that is subordinate to the principal residential structure. 6 PROVISION I: VEHICULAR ACCESS Vehicular access to the assisted property shall be consistent with the surrounding neighborhood. PROVISION J: UTILITY PLACEMENT Electric and gas meters serving new construction shall not be placed on a street facing building facade. Every effort shall be made to relocate electric and gas meters to a non-street facing building facade of a dwelling unit to be substantially rehabilitated. PROVISION K: ACCESSIBILITY All housing assisted by the City must incorporate the following accessibility measures. Please review Section R320.2 in the Iowa City Building Code for details. 1. Step-Less Entrance: At least one building entrance must comply with the Iowa City building code standard for an accessible entrance on an accessible route served by a ramp in accordance with section R311.8 or a no-step entrance. The accessible route must extend from a vehicular drop-off, or parking to a building entrance. The entry door must have a minimum net clear opening of thirty-two inches (32"). 2. Interior Doors: At least one bedroom, one bathroom and all other passage doorways on the level served by the step-less entrance, must be framed to accommodate a minimum 38" clear rough opening. The minimum door clear opening shall be thirty-two inches (32") when the door is open ninety degrees (90°), measured between the face of the door and the opposite stop. Note: A 34" door hung in the standard manner, provides an acceptable 32" opening. Exception: Doors serving closets twenty-four inches (24") or less in depth. 3. Switch And Outlet Requirements: All wall switches, controlling light fixtures, fans, all temperature control devices and all receptacles shall be located in an area between fifteen (15) and forty-eight (48) inches above finished floor. The height will be determined by measuring from the finished floor to the center of the device. 7 4. Electrical Panel Requirements: Electrical panels shall be located so that the individual circuit breakers are located between 15" and 54" above the floor. 5. Sanitation Facilities: There must be at least one bathroom containing a shower, water closet (toilet) and lavatory (sink) and either a shower, bathtub, or combination tub/shower located on the level of the dwelling to be accessed by a step-less entrance. The room must be designed in a manner that will provide a minimum of thirty inches (30") by forty-eight inches (48") clear floor space at the water closet and lavatory. The clear floor space shall not be obstructed by a doorway swing; however, clear floor space at fixtures may overlap if sufficient maneuvering space is provided within the room for a person using a wheelchair or other mobility aid to enter and close the door, use the fixtures, reopen the door and exit. Doors may swing into the clear floor space provided at any fixture if the maneuvering space is provided. Maneuvering space may include any knee space or toe space available below bathroom fixtures. 6. Wall Reinforcement: A bathroom must be provided with wood blocking installed within wall framing to support grab bars as needed. The wood blocking, when measured to the center, will be located between thirty-three inches (33") and thirty-six inches (36") above the finished floor. The wood blocking must be located in all walls adjacent to and behind a toilet, shower, or bathtub. 7. Garages: Must be wired for power operated overhead doors. 8. Decks: All exterior deck and patio surfaces adjacent to the level served by the step-less entrance must be built within four inches (4") of the dwelling's finish floor level or top of threshold whichever is higher. City of Iowa City Community Development 410 E. Washington Street Iowa City, IA 52240 319.356.5230 www.icgov.org