R3X Zoning in NYC
R3X is a low-rise, one- and two-family zoning district in New York City. It allows a residential FAR of 0.75 and buildings up to 35 ft tall. 52,333 tax lots carry the R3X designation, 61% of them in Staten Island.
R3X zoning rules at a glance
| Rule | Value | Note |
|---|---|---|
| Max residential FAR | 0.75 | ZR 23-21, after City of Yes (Dec 2024). |
| FAR, qualifying residential site | 1.0 | Sites of 5,000 sq ft or more meeting ZR 12-10; PLUTO cannot confirm it, check the lot. |
| Largest single dwelling unit | FAR 0.6 | Standard lots of 4,000 sq ft or more (ZR 23-21 footnote). |
| Street wall / base height | 25 ft | Before the pitched roof begins (ZR 23-42). |
| Max building height | 35 ft | Pitched roof required. |
| Front yard | 10 ft | ZR 23-32. |
| Side yard | 5 ft each side | Detached homes only, so side yards always apply. |
| Building types | Detached only |
R3X lots in the data
Where R3X lots are
- Staten Island: 31,856 parcels
- Queens: 18,324 parcels
- Brooklyn: 1,867 parcels
- The Bronx: 286 parcels
Browse by area in the neighborhood index.
R3X zoning questions
What is the maximum FAR in R3X?
Residential FAR in R3X is 0.75 (ZR 23-21). Floor area on a lot is that ratio times the lot area.
How tall can a building be in R3X?
R3X buildings reach 35 feet at most, with a 25-foot street wall under a pitched roof (ZR 23-42).
How built-out are R3X lots?
The average R3X lot is built to 0.49 FAR against an average maximum residential FAR of 0.75 in MapPLUTO 26v2, so about 35% of allowed floor area is unused on the average lot. Lots vary; open any one on the map.
Does City of Yes affect R3X lots?
52,333 of 52,333 R3X lots (100%) flag as touched by at least one City of Yes for Housing Opportunity program in NYRezone's screening. Eligibility is lot by lot; verify each one.
Look up any R3X lot
The NYRezone NYC zoning map shows zoning, buildable area and unused floor area for every parcel. No login.
Related R3 districts
Sources & freshness
Data: NYC MapPLUTO 26v2 (checked Sept. 28, 2026); compiled by NYRezone. Parcel counts and built-versus-allowed FAR come from that release. Rule values come from the NYC Zoning Resolution as amended by City of Yes for Housing Opportunity (Dec 2024). This is orientation, not legal advice: confirm a lot with the Department of City Planning before you act on it.