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Two family converted from one family
169 UNDERHILL AVENUE
BROOKLYN · BIN 3029148
💬 Discuss this project
1897Year Built
3Stories
B3Building Class
R6BZoning
3,536 sfGross Floor Area
2Units
Two family converted from one family · 1,867 sf lot · 1.89 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralMechanicalPlumbingFire Protection
Permit Issued — active, not yet Signed-off
RoofUnder Construction23p · 1 filing · 20 docs
Floor 3Under Construction17p · 1 filing · 20 docs
Floor 2Under Construction19p · 1 filing · 20 docs
Floor 1Under Construction17p · 1 filing · 20 docs
CellarUnder Construction21p · 1 filing · 20 docs
BasementUnder Construction17p · 1 filing · 20 docs
1 job · most recent 08/04/2025
Heating and Air Conditioning Systems Ventilation Systems
FiledStatusContractorScopeMake / Model / Capacity
08/04/2025Permit IssuedBMB BUILDER INCHeating and Air Conditioning Systems, Ventilation Systems
Heat / Cool
Mitsubishi Electric MXZ-SM36NAMHZ2 36,000 BTU · Heat Pump Outdoor ×1
MXZ-SM42NAMHZ2 42,000 BTU · Heat Pump Outdoor ×1
MXZ-SM48NAMHZ2 48,000 BTU · Heat Pump Outdoor ×1
Ventilation
Greenheck G-098-VG 600 CFM · Exhaust Fan ×1
1 job · most recent 08/04/2025
Sprinkler System
FiledStatusContractorScope
08/04/2025Permit IssuedAMERICAN STANDARD PLUMBINSprinkler System
1 job · most recent 08/04/2025
Gas Storm Water/Sanitary
FiledStatusContractorScope
08/04/2025Permit IssuedAMERICAN STANDARD P&H CORGas, Storm, Water/Sanitary
1 job · most recent 08/04/2026
General Wiring
FiledStatusContractorScope
08/04/2026Permit IssuedAERO ELECTRIC CORPGeneral Wiring
1 job · most recent 08/04/2025
Steel Concrete Masonry Wood
FiledStatusContractorScope
08/04/2025Permit IssuedAMERICAN STANDARD PLUMBINGSteel, Concrete, Masonry, Wood
Building Lifecycle
All (70)Filed (6)Permit Issued (7)Signed Off (1)Inspection (3)Objection (34)Special Inspection (19)
09/21/2026
Permit issued — Sprinklers
B01221706-S3-EW-SP
05/05/2026
Permit issued — Plumbing
B01221706-S2-PL
03/11/2026
Inspection — Pass-Final PL - Underground
Pass
View inspection ↗
12/15/2025
Permit issued — Mechanical Systems
B01221706-S1-MS
12/05/2025
Permit issued — General Construction
B01221706-I1-GC
12/05/2025
Permit issued — Structural
B01221706-S4-ST
11/21/2025
Objection resolved — Addressed
11/06/2025
Objection resolved — Addressed
11/06/2025
Objection resolved — Addressed
10/29/2025
Objection resolved — Addressed
10/29/2025
Objection resolved — Addressed
10/29/2025
Objection resolved — Addressed
10/29/2025
Objection resolved — Addressed
10/28/2025
Objection resolved — Addressed
10/28/2025
Objection resolved — Addressed
10/28/2025
Objection resolved — Addressed
10/21/2025
Objection resolved — Addressed
10/21/2025
Objection resolved — Addressed
10/21/2025
Objection resolved — Addressed
09/17/2025
Objection resolved — Addressed
08/18/2025
Objection raised — Scope
08/18/2025
Objection raised — Fire_Protection
08/15/2025
Objection raised — Plumbing
08/15/2025
Objection raised — Plumbing
08/15/2025
Objection raised — Plumbing
08/05/2025
Objection raised — Scope
08/05/2025
Objection raised — Scope
08/04/2025
Filed — Alteration CO
PROPOSED MECHANICAL FILING IN CONJUCTION WITH ARCH. DESIGNS, WORK INCLUDES THE INSTALLATION OF MULTI SPLIT HEAT PUMP UNITS FOR SPACE HEATING, BUILDING EXHAUST SYSTEMS AND OUTSIDE AIR INTAKE SYSTEMS.
B01221706-S3
08/04/2025
Filed — Alteration CO
PROPOSED MECHANICAL FILING IN CONJUCTION WITH ARCH. DESIGNS, WORK INCLUDES THE INSTALLATION OF MULTI SPLIT HEAT PUMP UNITS FOR SPACE HEATING, BUILDING EXHAUST SYSTEMS AND OUTSIDE AIR INTAKE SYSTEMS.
B01221706-S2
07/25/2025
Filed — Alteration CO
PROPOSED MECHANICAL FILING IN CONJUCTION WITH ARCH. DESIGNS, WORK INCLUDES THE INSTALLATION OF MULTI SPLIT HEAT PUMP UNITS FOR SPACE HEATING, BUILDING EXHAUST SYSTEMS AND OUTSIDE AIR INTAKE SYSTEMS.
B01221706-S1
07/24/2025
Objection raised — Structural
07/24/2025
Objection raised — Admin
07/24/2025
Objection raised — Admin
07/24/2025
Objection raised — Structural
07/24/2025
Objection raised — Structural
07/24/2025
Objection raised — Structural
07/24/2025
Objection resolved — Addressed
07/24/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
Thomas Gasbarro
07/16/2025
Filed — Alteration CO
PROPOSED MECHANICAL FILING IN CONJUCTION WITH ARCH. DESIGNS, WORK INCLUDES THE INSTALLATION OF MULTI SPLIT HEAT PUMP UNITS FOR SPACE HEATING, BUILDING EXHAUST SYSTEMS AND OUTSIDE AIR INTAKE SYSTEMS.
B01221706-S4
07/15/2025
Objection resolved — Addressed
07/15/2025
Special inspection requirement — Exhaust and Vent Systems in Plenums and Ducts
ANGEL ROJAS
07/15/2025
Special inspection requirement — Post-installed Anchors
ANGEL ROJAS
07/15/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
ANGEL ROJAS
07/15/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
ANGEL ROJAS
07/15/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
ANGEL ROJAS
07/02/2025
Objection resolved — Addressed
06/27/2025
Objection raised — Zoning
06/27/2025
Objection raised — Scope
06/27/2025
Objection raised — Scope
06/27/2025
Objection raised — Cost
06/17/2025
Filed — Alteration CO
PROPOSED MECHANICAL FILING IN CONJUCTION WITH ARCH. DESIGNS, WORK INCLUDES THE INSTALLATION OF MULTI SPLIT HEAT PUMP UNITS FOR SPACE HEATING, BUILDING EXHAUST SYSTEMS AND OUTSIDE AIR INTAKE SYSTEMS.
B01221706-I1
06/16/2025
Special inspection requirement — Structural Cold-Formed Steel
Thomas Gasbarro
06/16/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
Thomas Gasbarro
06/16/2025
Special inspection requirement — Structural Steel - Details
Thomas Gasbarro
06/16/2025
Special inspection requirement — Concrete - Cast-In-Place
Thomas Gasbarro
06/16/2025
Special inspection requirement — Masonry
Thomas Gasbarro
06/13/2025
Special inspection requirement — Final
Thomas Gasbarro
06/13/2025
Special inspection requirement — Mechanical Systems
ANGEL ROJAS
06/13/2025
Special inspection requirement — Final
ANGEL ROJAS
06/13/2025
Special inspection requirement — Sprinkler Systems
NORMAN LOK
Latest 60 of 70 events.
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
04/18/2025$3.1M—Private party → Private party$877/sf building
▾Design Consultants (Architect / Engineer of Record)
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
BMB BUILDING CONSULTING1003/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
BMB BUILDER INCGeneral Contractor307/08/2026
EMPIRE CITY CONSTRUCTIONGeneral Contractor307/08/2026
AMERICAN STANDARD PLUMBING &Fire Protection109/22/2026
AMERICAN STANDARD P&H CORORP.Plumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
AR ARCHITECT P.C.1171408/04/2025
NORMAN C. LOK818108/04/2025
GASBARRO STRUCTURAL ENGIN5919307/25/2025
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSprinklersPermit IssuedAMERICAN STANDARD PLUMBING &09/21/2026
DOB NOWPlumbingPermit IssuedAMERICAN STANDARD P&H CORORP.05/05/2026
DOB NOWMechanical SystemsPermit IssuedBMB BUILDER INC12/15/2025
DOB NOWGeneral ConstructionPermit IssuedBMB BUILDER INC12/05/2025
DOB NOWStructuralPermit IssuedBMB BUILDER INC12/05/2025
DOB NOWSupported ScaffoldSigned-offEMPIRE CITY CONSTRUCTION09/12/2023
DOB NOWSupported ScaffoldSigned-offEMPIRE CITY CONSTRUCTION06/09/2023
▾Field Inspections (DOB CAP) — 3
DateTypeResultReport
03/11/2026Pass-Final PL - UndergroundPassView ↗
01/17/2025Certified Storm Drainage-ST-Piping-UndergroundCertifiedView ↗
01/17/2025Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 19
DateRequirementInspectorRole
07/24/2025Structural Stability – Alterations of existing buildingsThomas Gasbarrospecial
07/15/2025Exhaust and Vent Systems in Plenums and DuctsANGEL ROJASspecial
07/15/2025Post-installed AnchorsANGEL ROJASspecial
07/15/2025Fire-Resistant Penetrations and JointsANGEL ROJASspecial
07/15/2025Fire-Resistant Penetrations and JointsANGEL ROJASspecial
07/15/2025Fire-Resistant Penetrations and JointsANGEL ROJASspecial
06/16/2025Structural Cold-Formed SteelThomas Gasbarrospecial
06/16/2025Structural Stability – Alterations of existing buildingsThomas Gasbarrospecial
06/16/2025Structural Steel - DetailsThomas Gasbarrospecial
06/16/2025Concrete - Cast-In-PlaceThomas Gasbarrospecial
06/16/2025MasonryThomas Gasbarrospecial
06/13/2025FinalThomas Gasbarroprogress
06/13/2025Mechanical SystemsANGEL ROJASspecial
06/13/2025FinalANGEL ROJASprogress
06/13/2025Sprinkler SystemsNORMAN LOKspecial
06/03/2025Fire-Resistant Penetrations and JointsANGEL ROJASspecial
06/03/2025Fire-Resistance Rated ConstructionANGEL ROJASprogress
06/03/2025Energy Code Compliance InspectionsANGEL ROJASprogress
05/06/2025Structural Stability – Alterations of existing buildingsThomas Gasbarrospecial
▾Documents — 44 on file (BIS + DOB NOW)
▸Plans & Drawings6
▸DOB NOWPlans/Sketch6
08/27/2026B00888121-I1Request digital key ↗
08/21/2026B01221706-S3Request digital key ↗
08/21/2026B01221706-S2Request digital key ↗
Showing 3 of 6 on file for this type
▸Applications & Permits4
▸DOB NOWLPC Approval/Permit4
08/13/2026B01221706-S4Open ↗
08/13/2026B01221706-S2Open ↗
08/13/2026B01221706-S1Open ↗
Showing 3 of 4 on file for this type
▸Zoning, Tax Lot & Property Records1
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026B01221706-I1Open ↗
▸Seals & Professional Certifications25
▸DOB NOWSpecial Inspector Seal & Signature15
09/23/2026B01221706-S1Open ↗
09/23/2026B01221706-S1Open ↗
09/23/2026B01221706-S1Open ↗
Showing 3 of 15 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature6
08/27/2026B00888121-I1Open ↗
08/21/2026B01221706-S3Open ↗
08/21/2026B01221706-S1Open ↗
Showing 3 of 6 on file for this type
▸DOB NOWProgress Inspector Seal & Signature4
09/23/2026B01221706-S1Open ↗
09/01/2026B01221706-I1Open ↗
09/01/2026B01221706-I1Open ↗
Showing 3 of 4 on file for this type
▸Safety & Tenant Protection1
▸DOB NOWStreet Tree Checklist1
08/13/2026B01221706-I1Open ↗
▸Environmental & Asbestos5
▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form5
08/21/2026B01221706-S3Open ↗
08/21/2026B01221706-S2Open ↗
08/21/2026B01221706-S4Open ↗
Showing 3 of 5 on file for this type
▸Other Documents2
▸DOB NOWProperty Ownership Certification1
08/21/2026B01221706-I1Open ↗
▸DOB NOWProof of Historic Building1
08/13/2026B01221706-I1Open ↗