57 Prospect Park Sw, Brooklyn
A 1921 elevator apartment building on Prospect Park Sw with 54 residential units on record, zoned R6A.
57 Prospect Park Sw is an elevator apartment building in Brooklyn, New York City (BBL 3011070021). The property is zoned R6A, on a 11,063 sq ft lot, with 6 floors and 54 residential units. It was built in 1921. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 3 open building violations for this lot as of 2026-07-05.
Property facts
| BBL | 3011070021 |
|---|---|
| Borough | Brooklyn — Community District 7 |
| Neighborhood | Windsor Terrace-South Slope |
| ZIP code | 11215 |
| Zoning district | R6A |
| Building class | D1 — elevator apartment building (what’s a building class?) |
| Land use | 03 — Multi-family elevator buildings |
| Lot area | 11,063 sq ft |
| Floors | 6 |
| Residential units | 54 |
| Year built | 1921 |
| FAR | 4.21 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
- 1 open ECB (OATH) violation
- 1 open Housing Preservation & Development violation
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.