717 42 Street, Brooklyn
A 1905 walk-up apartment building on 42 Street carrying 1.11 FAR of unused residential development rights on record under its R6B zoning.
717 42 Street is a walk-up apartment building in Brooklyn, New York City (BBL 3009220063). The property is zoned R6B, on a 1,878 sq ft lot, with 2 floors and 3 residential units. It was built in 1905. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 40 open building violations for this lot as of 2026-07-05.
Property facts
| BBL | 3009220063 |
|---|---|
| Borough | Brooklyn — Community District 7 |
| Neighborhood | Sunset Park (Central) |
| ZIP code | 11232 |
| Zoning district | R6B |
| Building class | C0 — walk-up apartment building (what’s a building class?) |
| Land use | 02 — Multi-family walk-up buildings |
| Lot area | 1,878 sq ft |
| Floors | 2 |
| Residential units | 3 |
| Year built | 1905 |
| FAR | 0.89 built · 2 max residential · 0 max commercial Learn: What is FAR? |
| Flood zone | Not in a FEMA Special Flood Hazard Area |
Public records
- 0 open Department of Buildings violations
- 1 open ECB (OATH) violation
- 39 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)
Nearby on this block
Data: NYC municipal records (Departments of City Planning, Buildings, Finance) and FEMA. See our sources and methodology. Data as of 2026-07-11.