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Two family converted from one family
233 WINTHROP STREET
BROOKLYN · Prospect Lefferts Gardens-Wingate · BIN 3115785
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1905Year Built
3Stories
B3Building Class
R6Zoning
1,862 sfGross Floor Area
2Units
FDNY Report ↗
Two family converted from one family · 1,917 sf lot · 0.97 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralElectrical
Roof2p · 1 filing · 4 docs
Sub-Basement1 filing · 4 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
NY BUILDING ASSOCIATES INC103/05/2026
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
BROOKLYN SOLARWORKS103/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
BROOKLYN SOLARWORKS LLCGeneral Contractor104/09/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
NKM ENGINEERING PLLC6244103/05/2026
Building Lifecycle
All (3)Filed (1)Permit Issued (1)Signed Off (1)
07/06/2026
Signed off — Alteration
B01363593-I1
03/09/2026
Permit issued — Solar
B01363593-I1-SL
03/05/2026
Filed — Alteration
B01363593-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSolarSigned-offBROOKLYN SOLARWORKS LLC03/09/2026
1 project · most recent 02/24/2026
FiledStatusContractorScope
02/24/2026CompleteBROOKYLN SOLARWORKS, LLC—
Nothing on file for this building.
▾Documents — 4 on file (BIS + DOB NOW)
▸Plans & Drawings1
▸DOB NOWPlans/Sketch1
08/18/2026B01363593-I1Request digital key ↗
▸Seals & Professional Certifications1
▸DOB NOWDPL-1: Design Professional Seal & Signature1
08/18/2026B01363593-I1Open ↗
▸Environmental & Asbestos1
▸DOB NOWDEP ACP-5: Asbestos Assessment Report1
08/18/2026B01363593-I1Open ↗
▸Approvals, Objections & Sign-offs1
▸DOB NOWUtility Company Final Acceptance Letter1
08/18/2026B01363593-I1Open ↗