120 Union Avenue, Brooklyn

A 2015 elevator apartment building on Union Avenue with 11 open violations on record across city enforcement files.

120 Union Avenue is an elevator apartment building in Brooklyn, New York City (BBL 3022380049). The property is zoned R6A, on a 26,000 sq ft lot, with 6 floors and 97 residential units. It was built in 2015. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 11 open building violations for this lot as of 2026-07-05.

Property facts

BBL	3022380049
Borough	Brooklyn — Community District 1
Neighborhood	South Williamsburg
Zoning district	R6A
Building class	D6 — elevator apartment building (what’s a building class?)
Land use	04 — Mixed residential & commercial buildings
Lot area	26,000 sq ft
Floors	6
Residential units	97
Year built	2015
FAR	2.7 built · 3 max residential · 0 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

3 open Department of Buildings violations
0 open ECB (OATH) violations
8 open Housing Preservation & Development violations
Façade safety filing status: UNFILED

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.