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Two family converted from one family
1723 GERRITSEN AVENUE
BROOKLYN · BIN 3183770
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1945Year Built
1Stories
B3Building Class
R3-2Zoning
2,427 sfGross Floor Area
2Units
Two family converted from one family · 3,000 sf lot · 0.81 FAR built · Flood zone X500
Locations of Work
No floor-level scope or drawing coverage on file for this building.
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
11/22/2024$970K—Private party → Private party$400/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
MW PROFESSIONAL ENGINEERING, P.C.610/22/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
JRK CREATIVE603/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
FIRST STAR CONSTRUCTION *General Contractor204/09/2026
CROSSFIELD PLBG.&HTGPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
MW PROFESSIONAL ENGINEERI570610/22/2025
Building Lifecycle
All (33)Filed (6)Permit Issued (3)Signed Off (3)Inspection (7)Objection (2)Special Inspection (12)
01/28/2026
Signed off — Alteration
FILING THIS APPLICATION TO REPLACE PLUMBING FIXTURES AND INSTALL NEW PLUMBING FIXTURES ON BASEMENT,1ST FL, FOR EXIST.TWO FAMILY UNITS.GENERAL CONSTRUCTION WILL FILING SEPARATE APPLICATION, NO CHANGE IN MEANS OF USE, EGRESS OR OCCUPANCY
B01167076-I1
01/28/2026
Signed off — Alteration
B01294696-I1
01/28/2026
Signed off — Alteration
INTERIOR RENOVATION ON BASEMENT ,1ST FL, FOR EXIST .TWO FAMILY UNITS,NEW PARTITION WALL AND PLUMBING WORK FILING SEPARATE APPLICATION ,NO CHANGE IN MEANS OF USE,EGRESS OR OCCUPANCY
B01167040-I1
01/22/2026
Inspection — Pass-Final General Construction Non-Directive 14
Pass
View inspection ↗
12/11/2025
Inspection — Fail-Final General Construction Non-Directive 14
Fail
View inspection ↗
10/29/2025
Permit issued — Mechanical Systems
B01294696-I1-MS
10/22/2025
Filed — Alteration
B01294696-I1
10/19/2025
Inspection — Certified Water and Sanitary-WS-Fixtures-Finish
Certified
View inspection ↗
10/01/2025
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
09/26/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
MING WAI WONG
09/26/2025
Special inspection requirement — Energy Code Compliance Inspections
MING WAI WONG
09/26/2025
Special inspection requirement — HVAC-R and service water heating system controls
MING WAI WONG
09/26/2025
Special inspection requirement — HVAC-R and service water piping design and insulation
MING WAI WONG
09/25/2025
Filed — Alteration
FILING THIS APPLICATION TO REPLACE PLUMBING FIXTURES AND INSTALL NEW PLUMBING FIXTURES ON BASEMENT,1ST FL, FOR EXIST.TWO FAMILY UNITS.GENERAL CONSTRUCTION WILL FILING SEPARATE APPLICATION, NO CHANGE IN MEANS OF USE, EGRESS OR OCCUPANCY
B01167076-P2
09/25/2025
Special inspection requirement — HVAC-R and service water heating system controls
MING WAI WONG
09/25/2025
Special inspection requirement — HVAC-R and service water piping design and insulation
MING WAI WONG
09/25/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
MING WAI WONG
09/25/2025
Special inspection requirement — Energy Code Compliance Inspections
MING WAI WONG
09/24/2025
Filed — Alteration
FILING THIS APPLICATION TO REPLACE PLUMBING FIXTURES AND INSTALL NEW PLUMBING FIXTURES ON BASEMENT,1ST FL, FOR EXIST.TWO FAMILY UNITS.GENERAL CONSTRUCTION WILL FILING SEPARATE APPLICATION, NO CHANGE IN MEANS OF USE, EGRESS OR OCCUPANCY
B01167076-P1
09/17/2025
Filed — Alteration
INTERIOR RENOVATION ON BASEMENT ,1ST FL, FOR EXIST .TWO FAMILY UNITS,NEW PARTITION WALL AND PLUMBING WORK FILING SEPARATE APPLICATION ,NO CHANGE IN MEANS OF USE,EGRESS OR OCCUPANCY
B01167040-P1
09/09/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
MING WAI WONG
09/09/2025
Special inspection requirement — Energy Code Compliance Inspections
MING WAI WONG
09/09/2025
Special inspection requirement — HVAC-R and service water piping design and insulation
MING WAI WONG
09/09/2025
Special inspection requirement — HVAC-R and service water heating system controls
MING WAI WONG
05/09/2025
Inspection — Certified Gas-Gas-Piping-Roughing
Certified
View inspection ↗
05/09/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
05/09/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
02/13/2025
Permit issued — Plumbing
B01167076-I1-PL
02/12/2025
Permit issued — General Construction
B01167040-I1-GC
02/10/2025
Filed — Alteration
FILING THIS APPLICATION TO REPLACE PLUMBING FIXTURES AND INSTALL NEW PLUMBING FIXTURES ON BASEMENT,1ST FL, FOR EXIST.TWO FAMILY UNITS.GENERAL CONSTRUCTION WILL FILING SEPARATE APPLICATION, NO CHANGE IN MEANS OF USE, EGRESS OR OCCUPANCY
B01167076-I1
02/05/2025
Objection resolved — Addressed
01/29/2025
Objection raised — Scope
01/21/2025
Filed — Alteration
INTERIOR RENOVATION ON BASEMENT ,1ST FL, FOR EXIST .TWO FAMILY UNITS,NEW PARTITION WALL AND PLUMBING WORK FILING SEPARATE APPLICATION ,NO CHANGE IN MEANS OF USE,EGRESS OR OCCUPANCY
B01167040-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWMechanical SystemsSigned-offFIRST STAR CONSTRUCTION *10/29/2025
DOB NOWPlumbingSigned-offCROSSFIELD PLBG.&HTG02/13/2025
DOB NOWGeneral ConstructionSigned-offFIRST STAR CONSTRUCTION *02/12/2025
1 project · most recent 03/02/2025
General Wiring
FiledStatusContractorScope
03/02/2025CompleteFIRST STAR ELECTRIC INCGeneral Wiring
▾Field Inspections (DOB CAP) — 7
DateTypeResultReport
01/22/2026Pass-Final General Construction Non-Directive 14PassView ↗
12/11/2025Fail-Final General Construction Non-Directive 14FailView ↗
10/19/2025Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
10/01/2025Pass-Final PL - Up to 3 Requested FloorsPassView ↗
05/09/2025Certified Gas-Gas-Piping-RoughingCertifiedView ↗
05/09/2025Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
05/09/2025Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 12
DateRequirementInspectorRole
09/26/2025Fire-Resistant Penetrations and JointsMING WAI WONGspecial
09/26/2025Energy Code Compliance InspectionsMING WAI WONGprogress
09/26/2025HVAC-R and service water heating system controlsMING WAI WONGenergy_progress
09/26/2025HVAC-R and service water piping design and insulationMING WAI WONGenergy_progress
09/25/2025HVAC-R and service water heating system controlsMING WAI WONGenergy_progress
09/25/2025HVAC-R and service water piping design and insulationMING WAI WONGenergy_progress
09/25/2025Fire-Resistant Penetrations and JointsMING WAI WONGspecial
09/25/2025Energy Code Compliance InspectionsMING WAI WONGprogress
09/09/2025Fire-Resistant Penetrations and JointsMING WAI WONGspecial
09/09/2025Energy Code Compliance InspectionsMING WAI WONGprogress
09/09/2025HVAC-R and service water piping design and insulationMING WAI WONGenergy_progress
09/09/2025HVAC-R and service water heating system controlsMING WAI WONGenergy_progress
▾Documents — 27 on file (BIS + DOB NOW)
▸Plans & Drawings6
▸DOB NOWPlans/Sketch6
08/23/2026B01167040-P1Request digital key ↗
08/23/2026B01167040-I1Request digital key ↗
08/22/2026B01167076-P1Request digital key ↗
Showing 3 of 6 on file for this type
▸Seals & Professional Certifications15
▸DOB NOWDPL-1: Design Professional Seal & Signature6
08/22/2026B01167076-P1Open ↗
08/22/2026B01167076-I1Open ↗
08/20/2026B01294696-I1Open ↗
Showing 3 of 6 on file for this type
▸DOB NOWProgress Inspector Seal & Signature6
09/23/2026B01167076-P2Open ↗
09/02/2026B01167076-I1Open ↗
09/02/2026B01167076-I1Open ↗
Showing 3 of 6 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature3
09/23/2026B01167076-P2Open ↗
09/02/2026B01167076-I1Open ↗
08/29/2026B01167076-P1Open ↗
▸Environmental & Asbestos6
▸DOB NOWDEP ACP-5: Asbestos Assessment Report6
08/22/2026B01167076-P1Open ↗
08/22/2026B01167076-I1Open ↗
08/20/2026B01294696-I1Open ↗
Showing 3 of 6 on file for this type