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Five to six families
271 UNION STREET
BROOKLYN · BIN 3004366
💬 Discuss this project
1920Year Built
4Stories
C2Building Class
R6AZoning
5,700 sfGross Floor Area
5Units
Rent Stabilized4 Open Violations ▸
Five to six families · Owner of record: BD5P UNST LLC · 2,500 sf lot · 2.28 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralMechanicalPlumbing
Permit Issued — active, not yet Signed-off
RoofUnder Construction2p · 1 filing · 9 docs
Floor 4Under Construction8p · 1 filing · 3 docs
Floor 3Under Construction8p · 1 filing · 3 docs
Floor 2Under Construction8p · 1 filing · 3 docs
Floor 1Under Construction3p · 1 filing · 20 docs
CellarUnder Construction3p · 1 filing · 20 docs
Sub-BasementUnder Construction3p · 1 filing · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
BD5P2604/09/2026
BD5P UNST LLC103/22/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
04/02/2025$5.9M—271 UNION LLC → BD5P UNST LLC$1,035/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
SHERMAN ARCHITECTS601/30/2026
D'ANTONIO CONSULTING ENGINEERS211/21/2025
ANGELOS GEORGOPOULOS, P.C.109/25/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
BMB BUILDING CONSULTING1803/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
WULFING CONSTRUCTION LLCGeneral Contractor404/09/2026
NEW PLBG & HTG CORPPlumbing207/08/2026
ULTRA ELECTRIC CORPElectrical103/22/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
ANGELOS GEORGOPOULOS, P.C2955201/26/2026
D'ANTONIO CONSULTING ENGI931501/26/2026
AK ENGINEERING PC678104/24/2025
Building Lifecycle
All (85)Filed (9)Permit Issued (6)Violation (10)Inspection (6)Objection (24)Special Inspection (30)
09/03/2026
Inspection — Certified Gas-Gas-Piping-Roughing
Certified
View inspection ↗
09/03/2026
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
06/23/2026
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
05/06/2026
Violation issued (HPD, open)
A
04/27/2026
Inspection — Pass-Final General Construction Non-Directive 14
Pass
View inspection ↗
04/17/2026
Inspection — Pass-Final General Construction Non-Directive 14
Pass
View inspection ↗
03/25/2026
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
02/24/2026
Permit issued — Structural
B01346484-S1-ST
02/19/2026
Objection resolved — Addressed
02/19/2026
Objection resolved — Addressed
02/19/2026
Objection resolved — Addressed
02/12/2026
Permit issued — Plumbing
B01313782-I1-PL
02/09/2026
Objection raised — Admin
02/09/2026
Objection raised — Other
02/09/2026
Objection raised — Other
02/05/2026
Objection raised — Admin
02/05/2026
Objection resolved — Addressed
02/05/2026
Objection raised — Other
02/05/2026
Objection resolved — Addressed
01/30/2026
Filed — Alteration
B01313776-I1
01/29/2026
Permit issued — Plumbing
B01196159-S1-PL
01/26/2026
Filed — Alteration
THE APPLICATION IS FOR THE RENOVATION OF THE ROOF LOCATED AT 271 UNION STREET. THE PROPOSAL INCLUDES NEW DUNNAGE AND CHIMNEY REMOVAL.
B01346484-I1
01/26/2026
Filed — Alteration
B01313782-I1
01/26/2026
Filed — Alteration
THE APPLICATION IS FOR THE RENOVATION OF THE ROOF LOCATED AT 271 UNION STREET. THE PROPOSAL INCLUDES NEW DUNNAGE AND CHIMNEY REMOVAL.
B01346484-S1
01/19/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
Angelos Georgopoulos
01/19/2026
Special inspection requirement — Structural Steel - Details
Angelos Georgopoulos
01/14/2026
Special inspection requirement — Final
Angelos Georgopoulos
12/19/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
12/19/2025
Special inspection requirement — Final
12/11/2025
Permit issued — Mechanical Systems
B01196159-S3-MS
12/10/2025
Permit issued — Structural
B01196159-S2-ST
11/21/2025
Filed — Alteration
RENOVATION OF THE CELLAR, BASEMENT, AND 1ST FLOOR OF AN EXISTING MULTI-FAMILY (5) STORY TOWNHOUSE WITH CELLAR. NEW GAS AND WATER/SANITARY INSTALLATION WORK.
B01196159-S3
11/20/2025
Violation issued (HPD, open)
I
11/19/2025
Objection resolved — Addressed
11/06/2025
Filed — Alteration
RENOVATION OF THE CELLAR, BASEMENT, AND 1ST FLOOR OF AN EXISTING MULTI-FAMILY (5) STORY TOWNHOUSE WITH CELLAR. NEW GAS AND WATER/SANITARY INSTALLATION WORK.
B01196159-S1
10/30/2025
Special inspection requirement — HVAC-R and service water heating equipment
GAETANO D'ANTONIO
10/30/2025
Special inspection requirement — Energy Code Compliance Inspections
GAETANO D'ANTONIO
10/30/2025
Special inspection requirement — HVAC-R and service water heating system controls
GAETANO D'ANTONIO
10/30/2025
Special inspection requirement — HVAC-R and service water piping design and insulation
GAETANO D'ANTONIO
10/22/2025
Objection resolved — Addressed
10/17/2025
Permit issued — General Construction
B01196159-I1-GC
10/13/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
GAETANO D'ANTONIO
10/10/2025
Objection resolved — Addressed
10/08/2025
Objection raised — Other
10/07/2025
Objection raised — Other
10/07/2025
Objection raised — Structural
09/25/2025
Filed — Alteration
RENOVATION OF THE CELLAR, BASEMENT, AND 1ST FLOOR OF AN EXISTING MULTI-FAMILY (5) STORY TOWNHOUSE WITH CELLAR. NEW GAS AND WATER/SANITARY INSTALLATION WORK.
B01196159-S2
09/04/2025
Special inspection requirement — Fenestration air leakage
Jeffrey Sherman
09/04/2025
Special inspection requirement — Air barrier - visual inspection
Jeffrey Sherman
09/04/2025
Special inspection requirement — Insulation placement and R values
Jeffrey Sherman
09/04/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
GAETANO D'ANTONIO
09/04/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
GAETANO D'ANTONIO
09/04/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
Ari Kamo
09/04/2025
Special inspection requirement — Energy Code Compliance Inspections
Jeffrey Sherman
09/04/2025
Special inspection requirement — Final
Jeffrey Sherman
08/22/2025
Filed — Alteration
RENOVATION OF THE CELLAR, BASEMENT, AND 1ST FLOOR OF AN EXISTING MULTI-FAMILY (5) STORY TOWNHOUSE WITH CELLAR. NEW GAS AND WATER/SANITARY INSTALLATION WORK.
B01196159-P1
08/05/2025
Special inspection requirement — Mechanical Systems
GAETANO D'ANTONIO
08/05/2025
Special inspection requirement — Final
GAETANO D'ANTONIO
07/24/2025
Special inspection requirement — Fenestration air leakage
07/24/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Latest 60 of 85 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWStructuralPermit IssuedWULFING CONSTRUCTION LLC02/24/2026
DOB NOWPlumbingPermit IssuedNEW PLBG & HTG CORP02/12/2026
DOB NOWPlumbingPermit IssuedNEW PLBG & HTG CORP01/29/2026
DOB NOWMechanical SystemsPermit IssuedWULFING CONSTRUCTION LLC12/11/2025
DOB NOWStructuralPermit IssuedWULFING CONSTRUCTION LLC12/10/2025
DOB NOWGeneral ConstructionPermit IssuedWULFING CONSTRUCTION LLC10/17/2025
2 projects · most recent 01/26/2026
Heating and Air Conditioning Systems Heating Systems Ventilation Systems
FiledStatusContractorScopeMake / Model / Capacity
01/26/2026Permit IssuedWULFING CONSTRUCTION LLCHeating and Air Conditioning Systems
Heat / Cool
Mitsubishi Electric MXZ-SM36NAM2-U1 41,000 BTU · Vrf Outdoor ×5
11/21/2025Permit IssuedWULFING CONSTRUCTION LLCHeating and Air Conditioning Systems, Heating Systems, Ventilation Systems
Heat / Cool
Mitsubishi Electric PKFY-L04NLMU-A 4,500 BTU · Vrf Indoor ×6
PKFY-L12NLMU-A 13,500 BTU · Vrf Indoor ×2
Heating
Weil-Mclain ECO TEC 150-H SERIES 2 150,000 BTU · Boiler ×1
Ventilation
Panasonic FV-0511VQ1 50 CFM · Exhaust Fan ×4
1 project · most recent 11/21/2025
Gas Storm Water/Sanitary
FiledStatusContractorScope
11/21/2025Permit IssuedNEW PLBG & HTG CORPGas, Storm, Water/Sanitary
2 projects · most recent 12/19/2025
General Wiring
FiledStatusContractorScope
12/19/2025Permit IssuedULTRA ELECTRIC CORP2 meters, 2 new_meters
10/30/2025Permit IssuedULTRA ELECTRIC CORPGeneral Wiring
2 projects · most recent 01/26/2026
Steel Wood
FiledStatusContractorScope
01/26/2026Permit IssuedWULFING CONSTRUCTION LLCSteel
11/21/2025Permit IssuedNEW PLBG & HTG CORPSteel, Wood
▾Field Inspections (DOB CAP) — 6
DateTypeResultReport
09/03/2026Certified Gas-Gas-Piping-RoughingCertifiedView ↗
09/03/2026Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
06/23/2026Pass-Final CND-Occupancy InspectionPassView ↗
04/27/2026Pass-Final General Construction Non-Directive 14PassView ↗
04/17/2026Pass-Final General Construction Non-Directive 14PassView ↗
03/25/2026Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 31
DateRequirementInspectorRole
01/19/2026Structural Stability – Alterations of existing buildingsAngelos Georgopoulosspecial
01/19/2026Structural Steel - DetailsAngelos Georgopoulosspecial
01/14/2026FinalAngelos Georgopoulosprogress
12/19/2025Fire-Resistant Penetrations and Joints—special
12/19/2025Final—progress
10/30/2025HVAC-R and service water heating equipmentGAETANO D'ANTONIOenergy_progress
10/30/2025Energy Code Compliance InspectionsGAETANO D'ANTONIOprogress
10/30/2025HVAC-R and service water heating system controlsGAETANO D'ANTONIOenergy_progress
10/30/2025HVAC-R and service water piping design and insulationGAETANO D'ANTONIOenergy_progress
10/13/2025Fire-Resistant Penetrations and JointsGAETANO D'ANTONIOspecial
09/04/2025Fenestration air leakageJeffrey Shermanenergy_progress
09/04/2025Air barrier - visual inspectionJeffrey Shermanenergy_progress
09/04/2025Insulation placement and R valuesJeffrey Shermanenergy_progress
09/04/2025Fire-Resistant Penetrations and JointsGAETANO D'ANTONIOspecial
09/04/2025Fire-Resistant Penetrations and JointsGAETANO D'ANTONIOspecial
09/04/2025Structural Stability – Alterations of existing buildingsAri Kamospecial
09/04/2025Energy Code Compliance InspectionsJeffrey Shermanprogress
09/04/2025FinalJeffrey Shermanprogress
08/05/2025Mechanical SystemsGAETANO D'ANTONIOspecial
08/05/2025FinalGAETANO D'ANTONIOprogress
07/24/2025Fenestration air leakage—energy_progress
07/24/2025Fire-Resistant Penetrations and Joints—special
07/24/2025Structural Stability – Alterations of existing buildings—special
07/24/2025Energy Code Compliance Inspections—progress
07/24/2025Final—progress
Latest 25 of 31.
▾Documents — 49 on file (BIS + DOB NOW)
▸Plans & Drawings9
▸DOB NOWPlans/Sketch9
08/21/2026B01196159-S1Request digital key ↗
08/21/2026B01196159-S3Request digital key ↗
08/21/2026B01196159-P1Request digital key ↗
Showing 3 of 9 on file for this type
▸Seals & Professional Certifications31
▸DOB NOWProgress Inspector Seal & Signature12
09/27/2026B01196159-S1Open ↗
09/27/2026B01196159-S1Open ↗
09/27/2026B01196159-S1Open ↗
Showing 3 of 12 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature10
09/27/2026B01196159-S1Open ↗
09/01/2026B01196159-I1Open ↗
09/01/2026B01196159-I1Open ↗
Showing 3 of 10 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature9
08/21/2026B01196159-S3Open ↗
08/21/2026B01196159-P1Open ↗
08/21/2026B01196159-S2Open ↗
Showing 3 of 9 on file for this type
▸Environmental & Asbestos9
▸DOB NOWDEP ACP-5: Asbestos Assessment Report9
08/21/2026B01196159-S3Open ↗
08/21/2026B01196159-P1Open ↗
08/21/2026B01196159-S1Open ↗
Showing 3 of 9 on file for this type