NYC Zoning Handbook:
Residential Districts: R8X
The regulations of R8X districts are similar to those of R7X
districts except for minor variations in street wall height,
sky exposure planes and a higher allowable residential
density. Three alternate sets of requirements based on these
distinctions result in 10-, 14- or 19-story apartment
buildings. R8X district (Alternate I) regulations are in
effect along the Grand Concourse in the Bronx.
The FAR in R8X districts is 6.02. The front wall of a new
building must be located within a mandated front wall setback
area. The maximum building height is determined by the
building envelope which may not be penetrated by the
building. The three alternative building envelopes are each
controlled by a differing set of intersecting front and rear
sky exposure planes that rise according to a specific ratio.
A tower set on a contextual base is permitted in two of the
alternates. The Quality Housing Program is mandatory in R8X
districts.
Basic Data
R8X: General residence district
- Maximum FAR: 6.02
- Maximum lot coverage:
- Corner lot 80%
- Interior or through-lot 70%
- Maximum front wall setback:
- Wide street: 8 feet
- Narrow street: 15 feet
- Minimum lot area per DU: 123 square feet
- Maximum DUs per acre: 354
- Required parking: 50% of dwelling units
- Quality Housing Program: Mandatory
