21 West 53 Street, Manhattan

An indoor public assembly building on a 55,350 sq ft Manhattan lot on West 53 Street, zoned C5-P, built in 1963.

21 West 53 Street is an indoor public assembly building in Manhattan, New York City (BBL 1012690020). The property is zoned C5-P, on a 55,350 sq ft lot, with 7 floors and 14 residential units. It was built in 1963. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 2 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1012690020
Borough	Manhattan — Community District 5
Neighborhood	Midtown-Times Square
Zoning district	C5-P
Building class	P7 — indoor public assembly building (what’s a building class?)
Land use	08 — Public facilities & institutions
Lot area	55,350 sq ft
Floors	7
Residential units	14
Year built	1963
FAR	6.42 built · 10 max residential · 8 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

2 open Department of Buildings violations
0 open ECB (OATH) violations
0 open Housing Preservation & Development violations
Façade safety filing status: SWARMP (latest filing 2022-02-17)

Violation counts as of 2026-07-05.

Absence of a record means none on file in NYC municipal records — not a certification of compliance.

The complete dossier also covers:

Buildable floor area (residential & commercial)
Recorded ownership & last sale
Recorded mortgages & open debt stack
LL97 carbon exposure by compliance period
Flood coverage percentage & base flood elevation
Climate projections for this lot
Open permits & construction pipeline
Distress signal convergence
Air rights & transferable development rights
Comparable sales (Pro)

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Data: NYC municipal records (Departments of City Planning, Buildings, Finance) and FEMA. See our sources and methodology. Data as of 2026-07-11.