17 Post Avenue, Manhattan

A 1917 walk-up apartment building on Post Avenue with 58 open violations on record across city enforcement files.

17 Post Avenue is a walk-up apartment building in Manhattan, New York City (BBL 1022170009). The property is zoned R7A, on a 15,500 sq ft lot, with 5 floors and 49 residential units. It was built in 1917. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 58 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1022170009
Borough	Manhattan — Community District 12
Neighborhood	Inwood
ZIP code	10034
Zoning district	R7A
Building class	C1 — walk-up apartment building (what’s a building class?)
Land use	02 — Multi-family walk-up buildings
Lot area	15,500 sq ft
Floors	5
Residential units	49
Year built	1917
FAR	2.73 built · 4 max residential · 0 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

2 open Department of Buildings violations
4 open ECB (OATH) violations — $625 in penalties due
52 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.