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1520 Williamsbridge Road zoning and development potential

1520 Williamsbridge Road, Bronx 10461 is a 13,547 square foot lot zoned R7-2. RunEnvelope’s engine finds an as-of-right scheme with homes of 86,097 sf (Residential + Community Facility), against 17,560 sf built on the lot today.

The lot

BBL
2-04082-0013
Block / lot
4082 / 13
Community district
Bronx Community District 11
Zoning
R7-2
Lot area
13,547 sf
Frontage x depth
47 ft x 183 ft
Lot type
Through
Current use
Commercial and office
Built today
17,560 sf, 2 floors
Year built
2000
Built FAR
1.30

Permitted floor area against what is built

Built on the lot today17,560 sf
Largest scheme with homes: Residential + Community Facility86,097 sf
Largest scheme, any use: Community Facility88,014 sf

That leaves 68,537 sf more floor area than stands here now, if the existing building were replaced.

City Planning’s PLUTO file lists a residential FAR of 3.44 for this lot, which at 13,547 sf of land is 46,602 sf. The engine’s largest residential-only scheme without an affordability obligation (Max Apartments) holds 54,188 sf, 16% more than that simple multiplication suggests.

Quality Housing height limit in R7-2 on a wide street: 85 ft (115 ft with the affordability preference). From the district’s rule set.

  • Wide street frontage
  • Mandatory Inclusionary Housing area
  • Irregular lot shape

Development scenarios

The largest 6 as-of-right schemes RunEnvelope’s engine produced for this lot, by zoning floor area. A full study also models the building itself: floor plates, heights, setbacks, unit mix and parking.

SchemeTypeFloor areaFARHomes
Community FacilityCommunity facility88,0146.50None
Residential + Community FacilityMixed use with homes86,0976.3658
AIRS Senior Housing (100% Affordable)Income-restricted housing67,8705.0176
Max ApartmentsHousing54,1884.0079
Commercial OverlayMixed use with homes54,1884.0048
Shared Housing (SRO)Shared housing (rooms)53,7133.96183 rooms

Floor area is zoning floor area in square feet. Highlighted: the largest scheme with homes. Income-restricted schemes (Universal Affordability Preference, AIRS senior housing) require a share or all of the homes to be affordable. Shared housing counts rooms, not apartments. Schemes that need a landmark transfer of development rights, the FRESH food store bonus or a stack of every program are left off this page; the full study shows them.

What these numbers are

As-of-right only: what the Zoning Resolution allows without a variance, special permit or rezoning. Computed by RunEnvelope’s zoning engine on October 25, 2026 from PLUTO 26v2 lot data, in screening mode: the engine uses the City’s recorded lot area and dimensions, not a surveyed lot outline.

This is not a professional opinion, an appraisal or a statement that anything will or should be built here. Existing tenants, leases and the owner’s plans are not part of it.

What a full study checks

  • ■The actual lot outline, street frontages and yards, not PLUTO's recorded dimensions
  • ■Easements, restrictive declarations and zoning lot agreements on record
  • ■Landmark, waterfront and flood rules that apply to the specific building
  • ■Height, setback and floor-by-floor massing, with floor plans
  • ■Unit count, parking and the affordability program terms

Why this lot has a page: we publish pages only for lots that clear a set of data quality and headroom tests.

This is the screening number. Get the study for 1520 Williamsbridge Road.

Run the full study