3021 Avenue I, Brooklyn

A 1930 elevator apartment building on Avenue I with 32 open violations on record across city enforcement files.

3021 Avenue I is an elevator apartment building in Brooklyn, New York City (BBL 3075760001). The property is zoned R6, on a 20,064 sq ft lot, with 6 floors and 84 residential units. It was built in 1930. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 32 open building violations for this lot as of 2026-07-05.

Property facts

BBL	3075760001
Borough	Brooklyn — Community District 14
Neighborhood	Flatbush
ZIP code	11210
Zoning district	R6
Building class	D1 — elevator apartment building (what’s a building class?)
Land use	03 — Multi-family elevator buildings
Lot area	20,064 sq ft
Floors	6
Residential units	84
Year built	1930
FAR	4.88 built · 2.43 max residential · 0 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

4 open Department of Buildings violations
5 open ECB (OATH) violations — $6,280 in penalties due
23 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.