R5 Infill Zoning Code - New York City
What is an R5 Infill Zoning District?
On a block entirely within an R5 district (without a suffix), optional regulations may be used to develop infill housing in predominately built-up areas. Infill regulations may be used if at least 50% of the area of the block is occupied by zoning lots developed with buildings, and the lot does not exceed 1.5 acres. However, infill regulations may not be used to redevelop a lot occupied by a one- or two-family detached or semi-detached house unless the blockfront is predominantly developed with attached or multifamily housing. The criteria for using infill regulations can be found in the definition of predominately built-up areas in Section 12-10 of the Zoning Resolution.
On sites that qualify for infill regulations, the higher floor area ratios of 1.65 and more relaxed parking requirements permit developments with greater bulk and more dwelling units than are otherwise permitted in R5 districts. Infill regulations typically produce three-story buildings with three dwellings units and two parking spaces - one in a ground-floor garage and the other in the driveway. Infill regulations may also produce small apartment buildings.
To ensure that infill housing generally conforms to existing neighborhood scale, height and setback regulations for R5 infill are the same as for R5B districts. Front yard must be at least 18 feet deep to prevent cars parked in the front driveway from jutting onto the sidewalk. The maximum street wall length for a building on a single zoning lot is 185 feet. Off-street must be provided for at least two-thirds of the dwelling units.
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