47 Frost Street, Brooklyn
A mixed residential and commercial building on Frost Street inside a FEMA-mapped flood zone, built in 1931, zoned M1-2/R6B.
47 Frost Street is a mixed residential and commercial building in Brooklyn, New York City (BBL 3027310029). The property is zoned M1-2/R6B, on a 2,474 sq ft lot, with 3 floors and 6 residential units. It was built in 1931. The lot is inside a FEMA Special Flood Hazard Area.
Property facts
| BBL | 3027310029 |
|---|---|
| Borough | Brooklyn — Community District 1 |
| Neighborhood | Williamsburg |
| Zoning district | M1-2/R6B |
| Building class | S9 — mixed residential and commercial building (what’s a building class?) |
| Land use | 04 — Mixed residential & commercial buildings |
| Lot area | 2,474 sq ft |
| Floors | 3 |
| Residential units | 6 |
| Year built | 1931 |
| FAR | 2.36 built · 2 max residential · 2 max commercial Learn: What is FAR? |
| Flood zone | In a FEMA Special Flood Hazard Area |
Public records
No open violations on record for this lot.
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.