278 Dean Street, Brooklyn
A 1920 walk-up apartment building on Dean Street with 8 residential units on record, zoned R6A.
278 Dean Street is a walk-up apartment building in Brooklyn, New York City (BBL 3001970021). The property is zoned R6A, on a 2,500 sq ft lot, with 4 floors and 8 residential units. It was built in 1920. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 5 open building violations for this lot as of 2026-07-05.
Property facts
| BBL | 3001970021 |
|---|---|
| Borough | Brooklyn — Community District 2 |
| Neighborhood | Downtown Brooklyn-DUMBO-Boerum Hill |
| ZIP code | 11217 |
| Zoning district | R6A |
| Building class | C1 — walk-up apartment building (what’s a building class?) |
| Land use | 02 — Multi-family walk-up buildings |
| Lot area | 2,500 sq ft |
| Floors | 4 |
| Residential units | 8 |
| Year built | 1920 |
| FAR | 3.26 built · 3 max residential · 0 max commercial Learn: What is FAR? |
| Flood zone | Not in a FEMA Special Flood Hazard Area |
Public records
- 1 open Department of Buildings violation
- 0 open ECB (OATH) violations
- 4 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.