NYC Zoning Handbook:
Residential Districts: R10A
Designed to be compatible with existing older neighborhoods,
R10A districts differ from R10 districts in greater lot
coverage and modified height and setback regulations. Typical
buildings are 19-story apartment buildings with high lot
coverage and street walls at the street line. This district
is mapped only in Manhattan. Areas that conform to R10A
district regulations are mapped along the wide cross streets
and avenues on the Upper West Side and Upper East Side.
The FAR in R10A districts is 10.0 which can be increased to
12.0 if lower-income housing is provided. The maximum
building height and setbacks are determined by the building
envelope which may not be penetrated by the building. The
building envelope is controlled by the intersection of front
and rear sky exposure planes that rise according to a
specific ratio. Only the front sky exposure plane is
applicable on wide streets. The Quality Housing Program is
mandatory in R10A districts.
Basic Data
R10A: General residence district
- Maximum FAR: 10.0 (to 12.0 with lower-income housing)
- Maximum lot coverage:
- Corner lot 100%
- Interior or through-lot 70%
- Maximum street wall: 150 feet
- Minimum lot area per DU: 79 square feet
- Maximum DUs per acre: 581
- Required parking: 40% of dwelling units
- Quality Housing Program: Mandatory
