121 East 31 Street, Manhattan

A 1930 elevator apartment building on East 31 Street with 96 residential units on record, zoned C4-5A.

121 East 31 Street is an elevator apartment building in Manhattan, New York City (BBL 1008870014). The property is zoned C4-5A, on a 7,989 sq ft lot, with 12 floors and 96 residential units. It was built in 1930. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 9 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1008870014
Borough	Manhattan — Community District 5
Neighborhood	Murray Hill-Kips Bay
ZIP code	10016
Zoning district	C4-5A
Building class	D3 — elevator apartment building (what’s a building class?)
Land use	03 — Multi-family elevator buildings
Lot area	7,989 sq ft
Floors	12
Residential units	96
Year built	1930
FAR	7.3 built · 4 max residential · 4 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

9 open Department of Buildings violations
0 open ECB (OATH) violations
0 open Housing Preservation & Development violations
Façade safety filing status: SWARMP (latest filing 2023-09-06)

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.