620 Atlantic Avenue, Brooklyn

An indoor public assembly building on a 315,943 sq ft Brooklyn lot on Atlantic Avenue, zoned M1-1, built in 2011.

620 Atlantic Avenue is an indoor public assembly building in Brooklyn, New York City (BBL 3011180001). The property is zoned M1-1, on a 315,943 sq ft lot, with 2 floors and 1 residential units. It was built in 2011. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 5 open building violations for this lot as of 2026-07-05.

Property facts

BBL	3011180001
Borough	Brooklyn — Community District 2
Neighborhood	Park Slope
ZIP code	11217
Zoning district	M1-1
Building class	P9 — indoor public assembly building (what’s a building class?)
Land use	08 — Public facilities & institutions
Lot area	315,943 sq ft
Floors	2
Residential units	1
Year built	2011
FAR	2.09 built · 0 max residential · 1 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

2 open Department of Buildings violations
3 open ECB (OATH) violations — $1,905 in penalties due
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)

Run a free lookupFree account — no card required

See plans & the one-time dossier

Watch this propertyAlerts on new permits, violations & sales

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.