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Three families
497 3 AVENUE
BROOKLYN · BIN 3022783
💬 Discuss this project
1899Year Built
3Stories
C0Building Class
R6AZoning
3,040 sfGross Floor Area
3Units
Rent Stabilized1 Open Violation ▸FDNY Report ↗
Three families · 1,289 sf lot · 2.36 FAR built · Flood zone X
Locations of Work
ArchitectureLandscape
Roof2p · 1 filing · 8 docs
Floor 62p · 1 filing · 8 docs
Floor 5
Floor 4
Floor 3
Floor 22p · 1 filing · 8 docs
Floor 13p · 1 filing · 8 docs
Mezzanine3p · 1 filing · 8 docs
Cellar2p · 1 filing · 8 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
09/09/2025$2.1M—— → —$688/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
WEI STUDIO507/27/2026
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
MHYDESIGN1803/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
NY BUILDING ASSOCIATES INGeneral Contractor307/08/2026
AMERICAN STANDARD P&H CORORP.Plumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
WEI STUDIO7998407/27/2026
NKM ENGINEERING PLLC6244111/12/2025
Building Lifecycle
All (12)Filed (5)Permit Issued (4)Signed Off (3)
08/20/2026
Signed off — Alteration
GENERAL RENOVATION OF 3-FAMILY HOUSE WITH RELOCATED//NEW PLUMBING FIXTURES AND BOILER AND H.W.H. AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01285478-S1
08/12/2026
Signed off — Alteration
GENERAL RENOVATION OF 3-FAMILY HOUSE WITH RELOCATED//NEW PLUMBING FIXTURES AND BOILER AND H.W.H. AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01285478-S2
08/12/2026
Signed off — Alteration
GENERAL RENOVATION OF 3-FAMILY HOUSE WITH RELOCATED//NEW PLUMBING FIXTURES AND BOILER AND H.W.H. AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01285478-I1
07/27/2026
Filed — Alteration
GENERAL RENOVATION OF 3-FAMILY HOUSE WITH RELOCATED//NEW PLUMBING FIXTURES AND BOILER AND H.W.H. AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01285478-P3
02/15/2026
Filed — Alteration
GENERAL RENOVATION OF 3-FAMILY HOUSE WITH RELOCATED//NEW PLUMBING FIXTURES AND BOILER AND H.W.H. AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01285478-P1
11/17/2025
Permit issued — Structural
B01285478-S2-ST
11/12/2025
Filed — Alteration
GENERAL RENOVATION OF 3-FAMILY HOUSE WITH RELOCATED//NEW PLUMBING FIXTURES AND BOILER AND H.W.H. AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01285478-S2
10/06/2025
Permit issued — Plumbing
B01285478-S1-PL
09/24/2025
Permit issued — General Construction
B01285478-I1-GC
09/24/2025
Permit issued — General Construction
B01285478-I1-MS
09/19/2025
Filed — Alteration
GENERAL RENOVATION OF 3-FAMILY HOUSE WITH RELOCATED//NEW PLUMBING FIXTURES AND BOILER AND H.W.H. AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01285478-S1
09/19/2025
Filed — Alteration
GENERAL RENOVATION OF 3-FAMILY HOUSE WITH RELOCATED//NEW PLUMBING FIXTURES AND BOILER AND H.W.H. AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01285478-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWStructuralSigned-offNY BUILDING ASSOCIATES IN11/17/2025
DOB NOWPlumbingSigned-offAMERICAN STANDARD P&H CORORP.10/06/2025
DOB NOWGeneral ConstructionSigned-offNY BUILDING ASSOCIATES IN09/24/2025
DOB NOWGeneral ConstructionSigned-offNY BUILDING ASSOCIATES IN09/24/2025
BISPLISSUEDLLOYD G DRUMMOND PLBG&GEN08/09/2016
BISPLISSUEDSTARLITE PLUMBING AND HEATING03/10/1994
BISEQISSUEDSWING STAGING12/07/1992
1 project · most recent 07/27/2026
Air Conditioning Systems
FiledStatusContractorScopeMake / Model / Capacity
07/27/2026Signed-offNY BUILDING ASSOCIATES INAir Conditioning Systems
Cooling
Mitsubishi Electric MXZ-4D30NL 30,000 BTU · Split System ×3
MUZ-HX09NL 9,000 BTU · Split System ×1
MXZ-SM36NAM 36,000 BTU · Split System ×3
1 project · most recent 07/27/2026
Gas Water/Sanitary
FiledStatusContractorScope
07/27/2026Signed-offAMERICAN STANDARD P&H CORGas, Water/Sanitary
3 projects · most recent 08/19/2026
General Wiring
FiledStatusContractorScope
08/19/2026CompleteJ Y ELECTRIC INC4 meters
11/19/2025Permit IssuedJ Y ELECTRIC INCGeneral Wiring
01/26/2018CancelledNASH ELECTRIC SERVICES IN—
1 project · most recent 07/27/2026
Wood
FiledStatusContractorScope
07/27/2026Signed-offNY BUILDING ASSOCIATES INWood
▾Field Inspections (DOB CAP) — 5
DateTypeResultReport
07/23/2026Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
07/16/2026Pass-Final PL - Up to 3 Requested FloorsPassView ↗
03/30/2026Certified Gas-Gas-Piping-RoughingCertifiedView ↗
03/30/2026Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
03/30/2026Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 18
DateRequirementInspectorRole
07/20/2026Fire-Resistant Penetrations and JointsRuoyu Weispecial
07/20/2026Mechanical SystemsRuoyu Weispecial
07/20/2026Energy Code Compliance InspectionsRuoyu Weiprogress
07/20/2026FinalRuoyu Weiprogress
07/20/2026Fire-Resistance Rated ConstructionRuoyu Weiprogress
07/20/2026Fenestration areasRuoyu Weienergy_progress
07/20/2026Air barrier - visual inspectionRuoyu Weienergy_progress
07/20/2026Fenestration air leakageRuoyu Weienergy_progress
07/20/2026HVAC-R and service water heating system controlsRuoyu Weienergy_progress
07/20/2026HVAC-R and service water heating equipmentRuoyu Weienergy_progress
07/20/2026HVAC-R and service water piping design and insulationRuoyu Weienergy_progress
07/20/2026Fenestration and door U-factor and product ratingsRuoyu Weienergy_progress
02/17/2026Fire-Resistant Penetrations and JointsRuoyu Weispecial
02/17/2026Energy Code Compliance InspectionsRuoyu Weiprogress
02/17/2026Maintenance informationRuoyu Weienergy_progress
02/17/2026HVAC-R and service water piping design and insulationRuoyu Weienergy_progress
02/17/2026HVAC-R and service water heating equipmentRuoyu Weienergy_progress
02/17/2026HVAC-R and service water heating system controlsRuoyu Weienergy_progress
▾Documents — 47 on file (BIS + DOB NOW)
▸Plans & Drawings5
▸DOB NOWPlans/Sketch5
08/19/2026B01285478-P1Request digital key ↗
08/19/2026B01285478-P3Request digital key ↗
08/19/2026B01285478-S1Request digital key ↗
Showing 3 of 5 on file for this type
▸Applications & Permits2
▸BISPLAN / WORK APPROVAL APPLICATION1
04/28/2016321375702Open ↗
▸BISWORK PERMIT APPLICATION1
08/09/2016321375702Open ↗
▸Seals & Professional Certifications26
▸DOB NOWProgress Inspector Seal & Signature15
08/27/2026B01285478-P3Open ↗
08/27/2026B01285478-P3Open ↗
08/27/2026B01285478-P3Open ↗
Showing 3 of 15 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature5
08/19/2026B01285478-P1Open ↗
08/19/2026B01285478-P3Open ↗
08/19/2026B01285478-S1Open ↗
Showing 3 of 5 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature3
08/27/2026B01285478-P3Open ↗
08/27/2026B01285478-P3Open ↗
08/26/2026B01285478-S1Open ↗
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION2
09/13/2016321375702Open ↗
04/28/2016321375702Open ↗
▸BISPROFESSIONAL CERTIFIED CHECKLIST1
04/28/2016321375702Open ↗
▸Trade Schedules & Equipment1
▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE1
04/28/2016321375702Open ↗
▸Safety & Tenant Protection1
▸BISTenant Protection Plan and Notes1
04/28/2016321375702Open ↗
▸Environmental & Asbestos6
▸DOB NOWDEP ACP-5: Asbestos Assessment Report5
08/19/2026B01285478-P1Open ↗
08/19/2026B01285478-P3Open ↗
08/19/2026B01285478-S1Open ↗
Showing 3 of 5 on file for this type
▸BISASBESTOS: CERTIFICATION (DEP ACP5)1
04/28/2016321375702Open ↗
▸Energy Compliance2
▸BISAS-BUILT ENERGY ANALYSIS1
09/13/2016321375702Open ↗
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS1
04/28/2016321375702Open ↗
▸Approvals, Objections & Sign-offs1
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST1
09/13/2016321375702Open ↗
▸Cost, Insurance & Ownership2
▸BISCOST AFFIDAVIT2
09/13/2016321375702Open ↗
04/28/2016321375702Open ↗
▸Filing & Intake Forms1
▸BISEFILING COVER SHEET1
04/28/2016321375702Open ↗