420 East 51 Street, Manhattan

An elevator apartment building on a 18,075 sq ft Manhattan lot on East 51 Street, zoned R8B, built in 1962.

420 East 51 Street is an elevator apartment building in Manhattan, New York City (BBL 1013620041). The property is zoned R8B, on a 18,075 sq ft lot, with 13 floors and 110 residential units. It was built in 1962. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 4 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1013620041
Borough	Manhattan — Community District 6
Neighborhood	East Midtown-Turtle Bay
ZIP code	10022
Zoning district	R8B
Building class	D4 — elevator apartment building (what’s a building class?)
Land use	03 — Multi-family elevator buildings
Lot area	18,075 sq ft
Floors	13
Residential units	110
Year built	1962
FAR	8.58 built · 4 max residential · 0 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

2 open Department of Buildings violations
1 open ECB (OATH) violation
1 open Housing Preservation & Development violation
Façade safety filing status: SAFE (latest filing 2022-06-22)

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.