420 Lexington Avenue, Manhattan

A 1927 condominium on Lexington Avenue with 8 residential units on record, zoned C5-3.

420 Lexington Avenue is a condominium in Manhattan, New York City (BBL 1012807501). The property is zoned C5-3, on a 68,302 sq ft lot, with 31 floors and 8 residential units. It was built in 1927. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 2 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1012807501
Borough	Manhattan — Community District 5
Neighborhood	East Midtown-Turtle Bay
ZIP code	10170
Zoning district	C5-3
Building class	RC — condominium (what’s a building class?)
Land use	05 — Commercial & office buildings
Lot area	68,302 sq ft
Floors	31
Residential units	8
Year built	1927
FAR	15.29 built · 10 max residential · 15 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

2 open Department of Buildings violations
0 open ECB (OATH) violations
0 open Housing Preservation & Development violations
Façade safety filing status: UNSAFE (latest filing 2026-01-28)

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.