459 Keap Street, Brooklyn
A 1899 mixed residential and commercial building on Keap Street with 3 residential units on record, zoned M1-2/R6A.
459 Keap Street is a mixed residential and commercial building in Brooklyn, New York City (BBL 3023740018). The property is zoned M1-2/R6A, on a 1,431 sq ft lot, with 3 floors and 3 residential units. It was built in 1899. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 6 open building violations for this lot as of 2026-07-05.
Property facts
| BBL | 3023740018 |
|---|---|
| Borough | Brooklyn — Community District 1 |
| Neighborhood | Williamsburg |
| Zoning district | M1-2/R6A |
| Building class | S2 — mixed residential and commercial building (what’s a building class?) |
| Land use | 04 — Mixed residential & commercial buildings |
| Lot area | 1,431 sq ft |
| Floors | 3 |
| Residential units | 3 |
| Year built | 1899 |
| FAR | 1.7 built · 3 max residential · 2 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
- 5 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.