736 West 173 Street, Manhattan

A 1922 walk-up apartment building on West 173 Street with 256 open violations on record across city enforcement files.

736 West 173 Street is a walk-up apartment building in Manhattan, New York City (BBL 1021390322). The property is zoned R8, on a 10,878 sq ft lot, with 5 floors and 79 residential units. It was built in 1922. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 256 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1021390322
Borough	Manhattan — Community District 12
Neighborhood	Washington Heights (South)
ZIP code	10032
Zoning district	R8
Building class	C7 — walk-up apartment building (what’s a building class?)
Land use	04 — Mixed residential & commercial buildings
Lot area	10,878 sq ft
Floors	5
Residential units	79
Year built	1922
FAR	4.43 built · 6.02 max residential · 0 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

1 open Department of Buildings violation
3 open ECB (OATH) violations — $3,750 in penalties due
252 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.