135 Madison Avenue, Manhattan

A 1912 office building on Madison Avenue with 24 residential units on record, zoned C5-2.

135 Madison Avenue is an office building in Manhattan, New York City (BBL 1008610022). The property is zoned C5-2, on a 12,837 sq ft lot, with 12 floors and 24 residential units. It was built in 1912. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 1 open building violation for this lot as of 2026-07-05.

Property facts

BBL	1008610022
Borough	Manhattan — Community District 5
Neighborhood	Midtown South-Flatiron-Union Square
ZIP code	10016
Zoning district	C5-2
Building class	O6 — office building (what’s a building class?)
Land use	05 — Commercial & office buildings
Lot area	12,837 sq ft
Floors	12
Residential units	24
Year built	1912
FAR	14.02 built · 10 max residential · 10 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
0 open Housing Preservation & Development violations
Façade safety filing status: SWARMP (latest filing 2020-10-08)

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.