424 Park Avenue South, Manhattan

A 1913 office building on Park Avenue South with 26 open violations on record across city enforcement files.

424 Park Avenue South is an office building in Manhattan, New York City (BBL 1008590039). The property is zoned C6-4A, on a 8,425 sq ft lot, with 16 floors and 16 residential units. It was built in 1913. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 26 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1008590039
Borough	Manhattan — Community District 5
Neighborhood	Midtown South-Flatiron-Union Square
ZIP code	10016
Zoning district	C6-4A
Building class	O6 — office building (what’s a building class?)
Land use	05 — Commercial & office buildings
Lot area	8,425 sq ft
Floors	16
Residential units	16
Year built	1913
FAR	15.05 built · 10 max residential · 10 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

19 open Department of Buildings violations
7 open ECB (OATH) violations
0 open Housing Preservation & Development violations
Façade safety filing status: SAFE (latest filing 2023-01-04)

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.