299 Adelphi Street, Brooklyn

A 1927 elevator apartment building on Adelphi Street with 79 open violations on record across city enforcement files.

299 Adelphi Street is an elevator apartment building in Brooklyn, New York City (BBL 3021040008). The property is zoned R6B, on a 11,473 sq ft lot, with 6 floors and 72 residential units. It was built in 1927. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 79 open building violations for this lot as of 2026-07-05.

Property facts

BBL	3021040008
Borough	Brooklyn — Community District 2
Neighborhood	Fort Greene
ZIP code	11205
Zoning district	R6B
Building class	D9 — elevator apartment building (what’s a building class?)
Land use	03 — Multi-family elevator buildings
Lot area	11,473 sq ft
Floors	6
Residential units	72
Year built	1927
FAR	3.84 built · 2 max residential · 0 max commercial Learn: What is FAR?
Historic district	Fort Greene Historic District
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

1 open Department of Buildings violation
1 open ECB (OATH) violation — $625 in penalties due
77 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.