53 Nassau Avenue, Brooklyn
An office building on Nassau Avenue inside a FEMA-mapped flood zone, built in 1931, zoned M1-2/R6.
53 Nassau Avenue is an office building in Brooklyn, New York City (BBL 3026440045). The property is zoned M1-2/R6, on a 7,500 sq ft lot, with 3 floors and 16 residential units. It was built in 1931. The lot is 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 | 3026440045 |
|---|---|
| Borough | Brooklyn — Community District 1 |
| Neighborhood | Greenpoint |
| Zoning district | M1-2/R6 |
| Building class | O5 — office building (what’s a building class?) |
| Land use | 05 — Commercial & office buildings |
| Lot area | 7,500 sq ft |
| Floors | 3 |
| Residential units | 16 |
| Year built | 1931 |
| FAR | 2.58 built · 2.43 max residential · 2 max commercial Learn: What is FAR? |
| Flood zone | In a FEMA Special Flood Hazard Area |
Public records
- 1 open Department of Buildings violation
- 1 open ECB (OATH) violation
- 0 open Housing Preservation & Development violations
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.