340 St Johns Place, Brooklyn

A 1924 elevator apartment building on St Johns Place with 244 open violations on record across city enforcement files.

340 St Johns Place is an elevator apartment building in Brooklyn, New York City (BBL 3011760009). The property is zoned R7A, on a 20,000 sq ft lot, with 6 floors and 58 residential units. It was built in 1924. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 244 open building violations for this lot as of 2026-07-05.

Property facts

BBL	3011760009
Borough	Brooklyn — Community District 8
Neighborhood	Prospect Heights
ZIP code	11238
Zoning district	R7A
Building class	D1 — elevator apartment building (what’s a building class?)
Land use	03 — Multi-family elevator buildings
Lot area	20,000 sq ft
Floors	6
Residential units	58
Year built	1924
FAR	4.85 built · 4 max residential · 0 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

10 open Department of Buildings violations
5 open ECB (OATH) violations — $3,925 in penalties due
229 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.