9 Dekalb Avenue, Brooklyn
A condominium built in 2021 on Dekalb Avenue under C6-4.5 zoning on a 46,367 sq ft lot.
9 Dekalb Avenue is a condominium in Brooklyn, New York City (BBL 3001497503). The property is zoned C6-4.5, on a 46,367 sq ft lot, with 74 floors and 547 residential units. It was built in 2021. 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 | 3001497503 |
|---|---|
| Borough | Brooklyn — Community District 2 |
| Neighborhood | Downtown Brooklyn-DUMBO-Boerum Hill |
| Zoning district | C6-4.5 |
| Building class | RM — condominium (what’s a building class?) |
| Land use | 04 — Mixed residential & commercial buildings |
| Lot area | 46,367 sq ft |
| Floors | 74 |
| Residential units | 547 |
| Year built | 2021 |
| FAR | 13.31 built · 10 max residential · 12 max commercial Learn: What is FAR? |
| Flood zone | Not in a FEMA Special Flood Hazard Area |
Public records
- 2 open Department of Buildings violations
- 0 open ECB (OATH) violations
- 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.