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516 Ruby Street zoning and development potential

516 Ruby Street, Brooklyn 11208 is a 20,000 square foot lot zoned R4. RunEnvelope’s engine finds an as-of-right scheme with homes of 29,375 sf (Residential + Community Facility), against 2,133 sf built on the lot today.

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The lot

BBL
3-04471-0021
Block / lot
4471 / 21
Community district
Brooklyn Community District 5
Zoning
R4
Lot area
20,000 sf
Frontage x depth
200 ft x 100 ft
Lot type
Inside
Current use
Commercial and office
Built today
2,133 sf, 1 floor
Year built
1973
Built FAR
0.11

Permitted floor area against what is built

Built on the lot today2,133 sf
Largest scheme with homes: Residential + Community Facility29,375 sf
Largest scheme, any use: Community Facility38,800 sf

That leaves 27,242 sf more floor area than stands here now, if the existing building were replaced.

City Planning’s PLUTO file lists a residential FAR of 1.00 for this lot, which at 20,000 sf of land is 20,000 sf. The engine’s largest residential-only scheme without an affordability obligation (Max Apartments) holds 20,000 sf, close to that simple multiplication.

  • Wide street frontage
  • FRESH food store zone
  • Coastal zone
  • Irregular lot shape

Development scenarios

The largest 3 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 facility38,8001.94None
Residential + Community FacilityMixed use with homes29,3751.4721
Max ApartmentsHousing20,0001.0029

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 23, 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.

Nearby lots with similar potential

2870 Linden BoulevardR4 · 0.16 mi away28,710 sf of room to build2550 Linden BoulevardR4 · 0.54 mi away51,716 sf of room to build5802 Clarendon RoadR4 · 3.65 mi away31,859 sf of room to build4124 Avenue UR4 · 5.38 mi away104,097 sf of room to build

The closest published lots in Brooklyn, same zoning district first. All Brooklyn lots.

This is the screening number. Get the study for 516 Ruby Street.

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