421 West 24 Street, Manhattan

A 1927 elevator apartment building on West 24 Street with 16 open violations on record across city enforcement files.

421 West 24 Street is an elevator apartment building in Manhattan, New York City (BBL 1007220024). The property is zoned R8A, on a 4,905 sq ft lot, with 6 floors and 35 residential units. It was built in 1927. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 16 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1007220024
Borough	Manhattan — Community District 4
Neighborhood	Chelsea-Hudson Yards
ZIP code	10011
Zoning district	R8A
Building class	D1 — elevator apartment building (what’s a building class?)
Land use	03 — Multi-family elevator buildings
Lot area	4,905 sq ft
Floors	6
Residential units	35
Year built	1927
FAR	4.28 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
0 open ECB (OATH) violations
15 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)

Run a free lookupFree account — no card required

See plans & the one-time dossier

Watch this propertyAlerts on new permits, violations & sales

Nearby on this block

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