C4-6 Zoning District — New York City
C4-6 is a high-density General Commercial District (NYC Zoning Resolution § 11-122) in New York City.
C4-6 is a high-density General Commercial District (NYC Zoning Resolution § 11-122) in New York City. It allows commercial uses, and generally also housing under the rules of a residential-equivalent district. Under the as of right — narrow street rules, the maximum residential FAR is 10 and the maximum commercial FAR is 3.4. 132 tax lots citywide carry C4-6 as their primary zoning designation.
Lot size on these roughly 130 tax lots is the most uneven in this group: a median of 2,724 square feet sits beside a 90th percentile of 45,739 — a small typical lot with a long tail of far larger parcels. Against that spread, floor-area headroom is close to universal: 98% of lots record built area below their mapped allowance, at a median residual of 7.2 FAR, the widest gap recorded here.
What actually stands in this district
Few designations in this file show as wide a gap between a typical lot and an outsized one. The median lot here runs 2,724 square feet, but the 90th percentile reaches 45,739 — nearly the largest recorded spread on these pages, meaning a modest majority of small parcels sits alongside a meaningful minority of much larger ones. That kind of split usually signals an older, subdivided block pattern interrupted by a handful of assembled or institutional-scale sites, though the records describe the shape of the lots, not why any particular one grew large. A parcel at the median here would sit comfortably among the smaller lots profiled across this whole comparison set, while a parcel at the top of the range would rank among the largest — both patterns recorded under the same designation, on the same roughly 130 lots.
On top of that spread, recorded floor area falls short of the mapped allowance almost everywhere: 98% of lots show a residual, and the median gap is 7.2 FAR — the widest headroom figure in this comparison set. A number that size, on lots this uneven, likely reflects the larger parcels in the mix as much as the smaller ones; either way, it describes recorded floor area against a mapped ceiling, not a prediction that the gap will close. Combined with the lot-size spread above, the record suggests at least some of that headroom sits on the handful of large parcels near the top of the range, though the file does not break the residual figure out lot by lot at this summary level.
The building stock is old and modestly scaled: a median construction year of 1910, with 73% of recorded buildings predating 1940 and just 4% falling inside the 1945-1975 postwar boom, against 15% built since 2000. Height stays low across most of the stock — a median of 4 stories, with 15% of buildings rising above 6 floors. By recorded class, store buildings lead at 25%, mixed residential-commercial buildings follow at 20%, and walk-up apartment buildings add 13%; by land use, mixed residential-commercial parcels dominate at 55%, commercial and office parcels follow at 20%, and public and institutional uses record 9%. That land-use mix, weighted heavily toward mixed residential-commercial parcels, tracks closely with the building-class file, where no single class approaches a majority on its own.
Fifty-eight percent of the roughly 130 lots are residential, holding 3,315 units, while flood exposure is the highest recorded in this set at 12% — with just 3% of lots falling inside a designated historic district. That 12% flood share is a statement about the current federal map for these specific parcels, not a claim about which of them have actually taken on water, and it stands out precisely because most other designations profiled alongside this one record flood exposure in the low single digits or at zero. Each lot's own page carries its specific recorded facts; the floor-area and height rules that govern this designation are in the tables above, with citations.
Bulk rules for C4-6
| Context | Residential FAR | Commercial FAR | Community facility FAR | Citation |
|---|---|---|---|---|
| As of right — narrow street§ 33-432 slope differs by street type: 2.7:1 narrow / 5.6:1 wide. | 10 | 3.4 | 10 | NYC Zoning Resolution § 33-122, § 33-123, § 33-25, § 33-26, § 33-43, § 33-432, § 34-112 |
| As of right — wide street§ 33-432 slope differs by street type: 2.7:1 narrow / 5.6:1 wide. | 10 | 3.4 | 10 | NYC Zoning Resolution § 33-122, § 33-123, § 33-25, § 33-26, § 33-43, § 33-432, § 34-112 |
Values from the NYC Zoning Resolution, verified 2026-06-12; site-specific overlays, special districts, and waterfront rules can modify them — run a full lookup for a specific lot.
About commercial districts
Commercial districts allow retail, office, and service uses, and most also allow housing under the rules of a residential-equivalent district. Commercial bulk is governed by § 33- of the NYC Zoning Resolution.
Contextual districts pair their floor-area ceilings with prescribed base and maximum building heights so new buildings mirror existing neighborhood form; non-contextual districts govern the envelope through more general height and setback rules, such as sky exposure planes. Commercial districts also allow residences under the rules of a residential-equivalent district, while manufacturing districts generally exclude new residences. Overlays and special purpose districts can modify any of this on a specific lot.
Example lots zoned C4-6
- 626 1 Avenue — 45,190 sq ft lot, 20.42 built FAR, built 2014
- 10 South Street — 191,502 sq ft lot, 0.82 built FAR, built 1900
- 203 East 92 Street — 32,025 sq ft lot, 11.77 built FAR, built 2014
- 200 East 94 Street — 45,739 sq ft lot, 7.64 built FAR, built 1986
- 95 South Street — 208,475 sq ft lot, 1.16 built FAR, built 2015
- 1280 5 Avenue — 24,825 sq ft lot, 9.65 built FAR, built 2008
- 300 West 135 Street — 49,975 sq ft lot, 4.64 built FAR, built 2003
- 2226 3 Avenue — 18,973 sq ft lot, 7.03 built FAR, built 2022
- 95 Marginal Street — 21,923 sq ft lot, 2.69 built FAR, built 2019
- 2211 3 Avenue — 17,661 sq ft lot, 7.24 built FAR, built 2015
- 225 East 93 Street — 13,793 sq ft lot, 7.97 built FAR, built 1985
- 220 East 94 Street — 16,000 sq ft lot, 9.96 built FAR, built 1986
C4-6 — quick questions
- What is the maximum residential FAR in C4-6?
- 10, as of right — narrow street, per NYC Zoning Resolution § 33-122, § 33-123, § 33-25, § 33-26, § 33-43, § 33-432, § 34-112. Site-specific overlays, special districts, and waterfront rules can modify it — run a full lookup for a specific lot.
- What is the maximum commercial FAR in C4-6?
- 3.4, as of right — narrow street, per NYC Zoning Resolution § 33-122, § 33-123, § 33-25, § 33-26, § 33-43, § 33-432, § 34-112. Site-specific overlays, special districts, and waterfront rules can modify it — run a full lookup for a specific lot.
- Is C4-6 a contextual district?
- No. C4-6 is not a contextual district; its building envelope is governed by the district's general height and setback rules rather than a prescribed contextual envelope.
- How much does lot size vary across this district?
- More than almost anywhere else in this comparison: the median lot is 2,724 square feet, but the 90th percentile runs to 45,739 — a small typical lot next to a long tail of much larger ones.
- How much recorded floor-area headroom does this designation carry?
- Nearly all of it is unused on paper: 98% of lots record floor area below their mapped allowance, at a median residual of 7.2 FAR — the widest gap recorded among these designations.
- When were most of the buildings on these lots constructed?
- Mostly before 1940: the median construction year is 1910, and 73% of recorded buildings predate 1940. Only 4% date from the 1945-1975 postwar boom, while 15% have been built since 2000.
- Are these lots exposed to flooding?
- More than most designations in this set: 12% of lots sit inside the mapped federal flood zone, against just 3% inside a designated historic district. Both are current-map facts, not predictions.
Keep learning
What do the C4-6 rules mean for a specific lot?
PearlAudit resolves the governing zoning for any NYC tax lot — district, overlays, special districts — and cites the Zoning Resolution section behind every rule claim.
District data: NYC municipal records (Department of City Planning) and the NYC Zoning Resolution. See our sources and methodology. Parcel data as of 2026-07-11.