235 West 23 Street, Manhattan

A 1906 office building on West 23 Street with 12 open violations on record across city enforcement files.

235 West 23 Street is an office building in Manhattan, New York City (BBL 1007730024). The property is zoned C2-7A, on a 5,925 sq ft lot, with 8 floors and 12 residential units. It was built in 1906. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 12 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1007730024
Borough	Manhattan — Community District 4
Neighborhood	Chelsea-Hudson Yards
ZIP code	10011
Zoning district	C2-7A
Building class	O6 — office building (what’s a building class?)
Land use	05 — Commercial & office buildings
Lot area	5,925 sq ft
Floors	8
Residential units	12
Year built	1906
FAR	8.3 built · 7.52 max residential · 2 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

3 open Department of Buildings violations
9 open ECB (OATH) violations
0 open Housing Preservation & Development violations
Façade safety filing status: SAFE (latest filing 2024-10-24)

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.