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Three families
314 HALSEY STREET
BROOKLYN · BIN 3053105
💬 Discuss this project
1910Year Built
3Stories
C0Building Class
R6BZoning
2,280 sfGross Floor Area
3Units
1 Open Violation ▸FDNY Report ↗
Three families · 2,000 sf lot · 1.14 FAR built · Flood zone X
Locations of Work
ArchitectureMechanicalPlumbingOther
Roof1p · 1 filing · 13 docs
Floor 33p · 1 filing · 20 docs
Floor 24p · 1 filing · 20 docs
Floor 15p · 1 filing · 20 docs
Cellar4p · 1 filing · 20 docs
Sub-Basement2p · 1 filing · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
USA DEVELOPMENT1307/08/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
10/24/2024$2.9M—MTEK BLUE LLC → Private party$1,261/sf building
10/10/2023$1.1M—Private party → MTEK BLUE LLC$461/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
NY BUILDING ASSOCIATES INC202/19/2026
MASTROGIACOMO ENGINEERING PC404/12/2024
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
WINNING EXPEDITING SERVICE803/21/2026
BROOKLYN SOLARWORKS203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
TURN KEY NYC LLCGeneral Contractor303/21/2026
BROOKLYN SOLARWORKS LLCGeneral Contractor104/09/2026
HORBRIDGE PLUMBING & HEATINGPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
NKM ENGINEERING PLLC6244202/19/2026
MASTROGIACOMO ENGINEERING4237404/12/2024
Building Lifecycle
All (47)Filed (6)Permit Issued (3)Signed Off (2)Violation (1)Inspection (5)Special Inspection (30)
02/19/2026
Signed off — Alteration
INSTALLATION OF SOLAR PV SYSTEM. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
B01265372-I1
02/19/2026
Filed — Alteration
INSTALLATION OF SOLAR PV SYSTEM. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
B01265372-P1
02/19/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
NARESH MAHANGU
02/19/2026
Special inspection requirement — Air barrier - visual inspection
NARESH MAHANGU
02/19/2026
Special inspection requirement — Final
NARESH MAHANGU
02/19/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
NARESH MAHANGU
02/19/2026
Special inspection requirement — Air barrier - visual inspection
NARESH MAHANGU
02/19/2026
Special inspection requirement — Final
NARESH MAHANGU
02/19/2026
Special inspection requirement — Energy Code Compliance Inspections
NARESH MAHANGU
02/19/2026
Special inspection requirement — Energy Code Compliance Inspections
NARESH MAHANGU
08/19/2025
Permit issued — Solar
B01265372-I1-SL
08/15/2025
Filed — Alteration
INSTALLATION OF SOLAR PV SYSTEM. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
B01265372-I1
05/20/2024
Signed off — Alteration
File in conjunction with B00949202-I1 to REMOVE ALL EXISTING PLUMBING FIXTURES, CAP UNUSED PIPING, INSTALL NEW PLUMBING FIXTURES AS PER PLAN WITH ASSOCIATED PIPING. NO CHANGE IN USE, EGRESS, AND OCCUPANCY.
B00949202-S1
04/15/2024
Special inspection requirement — HVAC-R and service water heating equipment
MICHAEL MASTROGIACOMO
04/15/2024
Special inspection requirement — HVAC-R and service water piping design and insulation
MICHAEL MASTROGIACOMO
04/15/2024
Special inspection requirement — Maintenance information
MICHAEL MASTROGIACOMO
04/15/2024
Special inspection requirement — Energy Code Compliance Inspections
MICHAEL MASTROGIACOMO
04/15/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
MICHAEL MASTROGIACOMO
04/15/2024
Special inspection requirement — HVAC-R and service water heating system controls
MICHAEL MASTROGIACOMO
04/12/2024
Filed — Alteration
File in conjunction with B00949202-I1 to REMOVE ALL EXISTING PLUMBING FIXTURES, CAP UNUSED PIPING, INSTALL NEW PLUMBING FIXTURES AS PER PLAN WITH ASSOCIATED PIPING. NO CHANGE IN USE, EGRESS, AND OCCUPANCY.
B00949202-P2
04/12/2024
Special inspection requirement — Energy Code Compliance Inspections
MICHAEL MASTROGIACOMO
04/12/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
MICHAEL MASTROGIACOMO
04/12/2024
Special inspection requirement — HVAC-R and service water heating system controls
MICHAEL MASTROGIACOMO
04/12/2024
Special inspection requirement — Maintenance information
MICHAEL MASTROGIACOMO
04/12/2024
Special inspection requirement — HVAC-R and service water piping design and insulation
MICHAEL MASTROGIACOMO
04/12/2024
Special inspection requirement — HVAC-R and service water heating equipment
MICHAEL MASTROGIACOMO
04/10/2024
Filed — Alteration
File in conjunction with B00949202-I1 to REMOVE ALL EXISTING PLUMBING FIXTURES, CAP UNUSED PIPING, INSTALL NEW PLUMBING FIXTURES AS PER PLAN WITH ASSOCIATED PIPING. NO CHANGE IN USE, EGRESS, AND OCCUPANCY.
B00949202-P1
04/08/2024
Special inspection requirement — HVAC-R and service water piping design and insulation
MICHAEL MASTROGIACOMO
04/08/2024
Special inspection requirement — Maintenance information
MICHAEL MASTROGIACOMO
04/08/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
MICHAEL MASTROGIACOMO
04/08/2024
Special inspection requirement — Energy Code Compliance Inspections
MICHAEL MASTROGIACOMO
04/08/2024
Special inspection requirement — HVAC-R and service water heating system controls
MICHAEL MASTROGIACOMO
04/08/2024
Special inspection requirement — HVAC-R and service water heating equipment
MICHAEL MASTROGIACOMO
01/10/2024
Inspection — Certified Gas-Gas-Piping-Roughing
Certified
View inspection ↗
01/10/2024
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
01/10/2024
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
01/08/2024
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
01/05/2024
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
12/20/2023
Permit issued — Mechanical Systems
B00949202-I1-GC-CX
10/25/2023
Permit issued — Plumbing
B00949202-S1-PL
10/20/2023
Filed — Alteration
File in conjunction with B00949202-I1 to REMOVE ALL EXISTING PLUMBING FIXTURES, CAP UNUSED PIPING, INSTALL NEW PLUMBING FIXTURES AS PER PLAN WITH ASSOCIATED PIPING. NO CHANGE IN USE, EGRESS, AND OCCUPANCY.
B00949202-S1
10/20/2023
Filed — Alteration
File in conjunction with B00949202-I1 to REMOVE ALL EXISTING PLUMBING FIXTURES, CAP UNUSED PIPING, INSTALL NEW PLUMBING FIXTURES AS PER PLAN WITH ASSOCIATED PIPING. NO CHANGE IN USE, EGRESS, AND OCCUPANCY.
B00949202-I1
10/17/2023
Special inspection requirement — Interior lighting power
MICHAEL MASTROGIACOMO
10/17/2023
Special inspection requirement — Metering
MICHAEL MASTROGIACOMO
10/17/2023
Special inspection requirement — Maintenance information
MICHAEL MASTROGIACOMO
10/17/2023
Special inspection requirement — Air barrier - visual inspection
MICHAEL MASTROGIACOMO
05/02/2011
Violation issued (HPD, open)
B
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSolarSigned-offBROOKLYN SOLARWORKS LLC08/19/2025
DOB NOWMechanical SystemsPermit IssuedTURN KEY NYC LLC12/20/2023
DOB NOWPlumbingSigned-offHORBRIDGE PLUMBING & HEAT10/25/2023
1 project · most recent 04/12/2024
Heating and Air Conditioning Systems
FiledStatusContractorScopeMake / Model / Capacity
04/12/2024Permit IssuedTURN KEY NYC LLCHeating and Air Conditioning Systems
Heat / Cool
Fujitsu AMUG30LMAS 32,000 BTU · Vrf Indoor ×2
AOU30RGLX 30,000 BTU · Heat Pump Outdoor ×2
1 project · most recent 04/12/2024
Gas Water/Sanitary
FiledStatusContractorScope
04/12/2024Signed-offHORBRIDGE PLUMBING & HEATGas, Water/Sanitary
3 projects · most recent 08/12/2025
General Wiring
FiledStatusContractorScope
08/12/2025CompleteBROOKYLN SOLARWORKS, LLC—
03/15/2024CompleteK.A.B. ELECTRIC CORP1 meters, 1 new_meters
10/24/2023CompleteK.A.B. ELECTRIC CORPGeneral Wiring
1 project · most recent 04/12/2024
Steel Wood
FiledStatusContractorScope
04/12/2024Permit IssuedTURN KEY NYC LLCSteel, Wood
▾Field Inspections (DOB CAP) — 5
DateTypeResultReport
01/10/2024Certified Gas-Gas-Piping-RoughingCertifiedView ↗
01/10/2024Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
01/10/2024Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
01/08/2024Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
01/05/2024Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 45
DateRequirementInspectorRole
02/19/2026Fire-Resistant Penetrations and JointsNARESH MAHANGUspecial
02/19/2026Air barrier - visual inspectionNARESH MAHANGUenergy_progress
02/19/2026FinalNARESH MAHANGUprogress
02/19/2026Fire-Resistant Penetrations and JointsNARESH MAHANGUspecial
02/19/2026Air barrier - visual inspectionNARESH MAHANGUenergy_progress
02/19/2026FinalNARESH MAHANGUprogress
02/19/2026Energy Code Compliance InspectionsNARESH MAHANGUprogress
02/19/2026Energy Code Compliance InspectionsNARESH MAHANGUprogress
04/15/2024HVAC-R and service water heating equipmentMICHAEL MASTROGIACOMOenergy_progress
04/15/2024HVAC-R and service water piping design and insulationMICHAEL MASTROGIACOMOenergy_progress
04/15/2024Maintenance informationMICHAEL MASTROGIACOMOenergy_progress
04/15/2024Energy Code Compliance InspectionsMICHAEL MASTROGIACOMOprogress
04/15/2024Fire-Resistant Penetrations and JointsMICHAEL MASTROGIACOMOspecial
04/15/2024HVAC-R and service water heating system controlsMICHAEL MASTROGIACOMOenergy_progress
04/12/2024Energy Code Compliance InspectionsMICHAEL MASTROGIACOMOprogress
04/12/2024Fire-Resistant Penetrations and JointsMICHAEL MASTROGIACOMOspecial
04/12/2024HVAC-R and service water heating system controlsMICHAEL MASTROGIACOMOenergy_progress
04/12/2024Maintenance informationMICHAEL MASTROGIACOMOenergy_progress
04/12/2024HVAC-R and service water piping design and insulationMICHAEL MASTROGIACOMOenergy_progress
04/12/2024HVAC-R and service water heating equipmentMICHAEL MASTROGIACOMOenergy_progress
04/08/2024HVAC-R and service water piping design and insulationMICHAEL MASTROGIACOMOenergy_progress
04/08/2024Maintenance informationMICHAEL MASTROGIACOMOenergy_progress
04/08/2024Fire-Resistant Penetrations and JointsMICHAEL MASTROGIACOMOspecial
04/08/2024Energy Code Compliance InspectionsMICHAEL MASTROGIACOMOprogress
04/08/2024HVAC-R and service water heating system controlsMICHAEL MASTROGIACOMOenergy_progress
Latest 25 of 45.
▾Documents — 62 on file (BIS + DOB NOW)
▸Plans & Drawings6
▸DOB NOWPlans/Sketch6
08/26/2026B00949202-P2Request digital key ↗
08/26/2026B00949202-P1Request digital key ↗
08/26/2026B00949202-S1Request digital key ↗
Showing 3 of 6 on file for this type
▸Seals & Professional Certifications49
▸DOB NOWProgress Inspector Seal & Signature33
09/03/2026B01265372-I1Open ↗
09/03/2026B01265372-I1Open ↗
09/01/2026B01265372-P1Open ↗
Showing 3 of 33 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature10
09/03/2026B01265372-I1Open ↗
09/01/2026B01265372-P1Open ↗
08/27/2026B00949202-P1Open ↗
Showing 3 of 10 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature6
08/26/2026B00949202-I1Open ↗
08/26/2026B00949202-P2Open ↗
08/26/2026B00949202-P1Open ↗
Showing 3 of 6 on file for this type
▸Environmental & Asbestos6
▸DOB NOWDEP ACP-5: Asbestos Assessment Report6
08/26/2026B00949202-P2Open ↗
08/26/2026B00949202-P1Open ↗
08/26/2026B00949202-S1Open ↗
Showing 3 of 6 on file for this type
▸Approvals, Objections & Sign-offs1
▸DOB NOWUtility Company Final Acceptance Letter1
08/13/2026B01265372-I1Open ↗