City Island is predominantly zoned R3-2, with
C1-2 and C2-2 commercial overlays on portions
of City Island Avenue. Residential and community
facility uses are permitted in R3-2 zoning districts,
with a height restriction of 35 feet and a maximum
floor area ratio (FAR) of 0.5 with a 0.1 attic
allowance. R3-2 zoning districts allow for a variety
of housing types including one- and two-family
detached and semi-detached houses, garden apartments
and row houses.
In December 1976, the City Planning Commission
amended the Zoning Resolution by creating the
Special City Island District which was subsequently
approved in January 1977 by the Board of Estimate.
Among its provisions is a maximum building height
in residential zones of 35 feet in order to maintain
the neighborhood’s existing low-rise character.
(In 1989 lower density contextual zoning amendments
placed 35-foot height restrictions on all new
construction in R3-2 districts citywide.)
Three small areas on City Island are zoned C3.
C3 districts have an R3-2 residential equivalent,
and permit residential development along with
marine-related commercial uses. There are also
three clusters of M1-1 districts on the waterfront.
The M1-1 district is a light manufacturing district
with a maximum permitted FAR of 1.0. On City Island,
the predominant manufacturing uses have historically
been boat-related and marine manufacturing firms.