45 West 81st Street, Manhattan

A 1923 condominium on West 81st Street carrying 2.34 FAR of unused residential development rights on record under its R10A zoning.

45 West 81st Street is a condominium in Manhattan, New York City (BBL 1011957501). The property is zoned R10A, on a 12,771 sq ft lot, with 15 floors and 148 residential units. It was built in 1923. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 1 open building violation for this lot as of 2026-07-05.

Property facts

BBL	1011957501
Borough	Manhattan — Community District 7
Neighborhood	Upper West Side (Central)
ZIP code	10024
Zoning district	R10A
Building class	RM — condominium (what’s a building class?)
Land use	04 — Mixed residential & commercial buildings
Lot area	12,771 sq ft
Floors	15
Residential units	148
Year built	1923
FAR	7.66 built · 10 max residential · 0 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

0 open Department of Buildings violations
1 open ECB (OATH) violation — $12,500 in penalties due
0 open Housing Preservation & Development violations

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.