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Two family converted from one family
31 LEFFERTS PLACE
BROOKLYN · BIN 3414505
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1910Year Built
3Stories
B3Building Class
R6BZoning
3,960 sfGross Floor Area
2Units
2 Open Violations 0 unresolved · 2 paperwork only ▸FDNY Report ↗
Two family converted from one family · 2,730 sf lot · 1.45 FAR built · Flood zone X
Locations of Work
No floor-level scope or drawing coverage on file for this building.
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
09/30/2021$2.9M—— → —$731/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
ADB ASSOCIATES102/06/2026
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
ACDE GROUP103/21/2026
Building Lifecycle
All (7)Filed (1)Objection (6)
03/31/2026
Objection resolved — Addressed
02/25/2026
Objection raised — Other
02/25/2026
Objection raised — Other
02/25/2026
Objection raised — Other
02/25/2026
Objection raised — Other
02/25/2026
Objection raised — Other
02/06/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
B01328025-I1
Nothing on file for this building.
Nothing on file for this building.
Nothing on file for this building.
▾Documents — 5 on file (BIS + DOB NOW)
▸Plans & Drawings1
▸DOB NOWPlans/Sketch1
08/14/2026B01328025-I1Request digital key ↗
▸Zoning, Tax Lot & Property Records1
▸DOB NOWZD1: DOB Zoning Diagram1
08/13/2026B01328025-I1Open ↗
▸Seals & Professional Certifications1
▸DOB NOWDPL-1: Design Professional Seal & Signature1
08/18/2026B01328025-I1Open ↗
▸Other Documents2
▸DOB NOWFinal Survey1
08/13/2026B01328025-I1Open ↗
▸DOB NOWSite Survey: Initial1
08/13/2026B01328025-I1Open ↗