350 Classon Avenue, Brooklyn
An office building on a 10,200 sq ft Brooklyn lot on Classon Avenue, zoned R6B, built in 1948.
350 Classon Avenue is an office building in Brooklyn, New York City (BBL 3019480035). The property is zoned R6B, on a 10,200 sq ft lot, with 5 floors and 2 residential units. It was built in 1948. 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 | 3019480035 |
|---|---|
| Borough | Brooklyn — Community District 2 |
| Neighborhood | Clinton Hill |
| ZIP code | 11238 |
| Zoning district | R6B |
| Building class | O5 — office building (what’s a building class?) |
| Land use | 05 — Commercial & office buildings |
| Lot area | 10,200 sq ft |
| Floors | 5 |
| Residential units | 2 |
| Year built | 1948 |
| FAR | 2.96 built · 2 max residential · 0 max commercial Learn: What is FAR? |
| Flood zone | Not in a FEMA Special Flood Hazard Area |
Public records
- 6 open Department of Buildings violations
- 0 open ECB (OATH) violations
- 0 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)
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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.