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City residence, one family
409 UNION STREET
BROOKLYN · Carroll Gardens-Cobble Hill-Gowanus-Red Hook · BIN 3007091
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1899Year Built
3Stories
A4Building Class
R6BZoning
3,112 sfGross Floor Area
1Units
Rent Stabilized0 Open Violations
City residence, one family · 1,740 sf lot · 1.79 FAR built · Flood zone X
Locations of Work
MechanicalPlumbingFire ProtectionCivil
Roof6p · 3 filings · 20 docs
Floor 24p · 3 filings · 20 docs
Floor 11p · 1 filing · 17 docs
Cellar4p · 3 filings · 20 docs
Basement1p · 1 filing · 6 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
JASCO807/08/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
02/25/2020$2.9M—Private party → JAZ409 LLC$940/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
PLUS GROUP CONSULTING ENGG, PLLC708/23/2023
SYED ENGINEERING, P.C.204/03/2021
SILMAN103/30/2021
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
BMB BUILDING CONSULTING1603/21/2026
ADVANCED BUILDERS SERVICES203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
POLOM CORPGeneral Contractor807/08/2026
JASCO, INCGeneral Contractor407/08/2026
AMERICAN STANDARD PLUMBING &Fire Protection207/08/2026
AMERICAN STANDARD P&H CORORP.Plumbing207/08/2026
PANKO MC LLCGeneral Contractor107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
STEEL CORE ENGINEERING PL1098708/23/2023
TECNICO SPECIAL INSPECTIO5939103/30/2021
Building Lifecycle
All (72)Filed (10)Permit Issued (11)Signed Off (6)Violation (12)Inspection (1)Objection (2)Special Inspection (30)
06/11/2025
Violation issued (HPD, closed)
A
11/29/2024
Violation issued (HPD, closed)
I
04/12/2024
Violation issued (HPD, closed)
A
03/07/2024
Signed off — Alteration
Major renovation to plumbing systems in 1-family residential building, including natural gas system, domestic water and sanitary system as per plans filed in conjunction with Alt 1 # 321590925.
B00362538-I1
03/06/2024
Signed off — Alteration
Propose to install new sprinkler system throughout the building as per plan filed in conjunction with Alt 1 # 321590925
B00399787-I1
11/22/2023
Violation issued (HPD, closed)
I
09/05/2023
Special inspection requirement — Maintenance information
YANNIK NEUFANG
09/05/2023
Special inspection requirement — HVAC insulation and sealing
YANNIK NEUFANG
09/05/2023
Special inspection requirement — HVAC and service water heating system controls
YANNIK NEUFANG
09/05/2023
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Sheyman
09/05/2023
Special inspection requirement — HVAC and service water heating equipment
YANNIK NEUFANG
08/28/2023
Objection resolved — Addressed
08/25/2023
Objection raised — Admin
08/23/2023
Filed — Alteration
Major renovation to plumbing systems in 1-family residential building, including natural gas system, domestic water and sanitary system as per plans filed in conjunction with Alt 1 # 321590925.
B00362538-P2
08/22/2023
Special inspection requirement — Maintenance information
YANNIK NEUFANG
08/22/2023
Special inspection requirement — HVAC and service water heating equipment
YANNIK NEUFANG
08/22/2023
Special inspection requirement — HVAC and service water heating system controls
YANNIK NEUFANG
08/22/2023
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Sheyman
08/22/2023
Special inspection requirement — HVAC insulation and sealing
YANNIK NEUFANG
06/27/2023
Inspection — Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test
Certified
View inspection ↗
04/07/2023
Signed off — Alteration
Interior renovation with all new heating and air conditioning system as per plans filed in conjunction with Alt 1 # 321590925.
B00362531-I1
03/27/2023
Violation issued (HPD, closed)
A
03/14/2023
Signed off — Alteration
B00483482-I1
11/21/2022
Permit issued — Mechanical Systems
B00362531-I1-MS
11/21/2022
Permit issued — Structural
B00483482-I1-ST
11/14/2022
Violation issued (HPD, closed)
I
11/03/2022
Permit issued — Sprinklers
B00399787-I1-EW-SP
11/03/2022
Permit issued — Plumbing
B00362538-I1-PL
06/28/2022
Permit issued — Mechanical Systems
B00362531-I1-MS
06/02/2022
Signed off — Alteration
B00496467-I1
06/02/2022
Signed off — Alteration
B00496466-I1
05/12/2022
Permit issued — Structural
B00483482-I1-ST
03/02/2022
Violation issued (HPD, closed)
A
03/02/2022
Violation issued (HPD, closed)
I
11/08/2021
Permit issued — Structural
B00483482-I1-ST
10/15/2021
Permit issued — Plumbing
B00362538-I1-PL
10/13/2021
Permit issued — Sprinklers
B00399787-I1-EW-SP
04/13/2021
Violation issued (HPD, closed)
I
04/13/2021
Violation issued (HPD, closed)
A
04/05/2021
Permit issued — Sidewalk Shed
B00496466-I1-SH
04/05/2021
Permit issued — Supported Scaffold
B00496467-I1-SF
04/03/2021
Filed — Alteration
B00496467-I1
04/03/2021
Filed — Alteration
B00496466-I1
04/01/2021
Special inspection requirement — Final
RAFI HAMID
03/30/2021
Filed — Alteration
B00483482-I1
03/25/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Sheyman
03/25/2021
Special inspection requirement — Mechanical Systems
Alexander Sheyman
03/25/2021
Special inspection requirement — Final
Alexander Sheyman
03/25/2021
Special inspection requirement — Electrical motors
YANNIK NEUFANG
03/25/2021
Special inspection requirement — Shutoff dampers
YANNIK NEUFANG
03/25/2021
Special inspection requirement — Maintenance information
YANNIK NEUFANG
03/25/2021
Special inspection requirement — HVAC and service water heating system controls
YANNIK NEUFANG
03/25/2021
Special inspection requirement — HVAC and service water heating equipment
YANNIK NEUFANG
03/25/2021
Special inspection requirement — HVAC insulation and sealing
YANNIK NEUFANG
03/23/2021
Filed — Alteration
Interior renovation with all new heating and air conditioning system as per plans filed in conjunction with Alt 1 # 321590925.
B00362531-P1
03/22/2021
Special inspection requirement — Sprinkler Systems
Alexander Sheyman
03/22/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Sheyman
03/19/2021
Filed — Alteration
Major renovation to plumbing systems in 1-family residential building, including natural gas system, domestic water and sanitary system as per plans filed in conjunction with Alt 1 # 321590925.
B00362538-P1
03/19/2021
Filed — Alteration
Propose to install new sprinkler system throughout the building as per plan filed in conjunction with Alt 1 # 321590925
B00399787-P1
03/18/2021
Special inspection requirement — Masonry
Alexander Sheyman
Latest 60 of 72 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWMechanical SystemsSigned-offPOLOM CORP11/21/2022
DOB NOWStructuralSigned-offPOLOM CORP11/21/2022
DOB NOWSprinklersSigned-offAMERICAN STANDARD PLUMBIN11/03/2022
DOB NOWPlumbingSigned-offAMERICAN STANDARD P&H CORORP.11/03/2022
DOB NOWMechanical SystemsSigned-offPANKO MC LLC06/28/2022
DOB NOWStructuralSigned-offPOLOM CORP05/12/2022
DOB NOWStructuralSigned-offPOLOM CORP11/08/2021
DOB NOWPlumbingSigned-offAMERICAN STANDARD P&H CORORP.10/15/2021
DOB NOWSprinklersSigned-offAMERICAN STANDARD PLUMBIN10/13/2021
DOB NOWSidewalk ShedSigned-offJASCO, INC04/05/2021
DOB NOWSupported ScaffoldSigned-offJASCO, INC04/05/2021
BIS—ISSUEDPOLOM CORP11/21/2022
BIS—ISSUEDPOLOM CORP05/11/2022
BIS—ISSUEDPOLOM CORP08/16/2021
BIS—ISSUEDA TO Z GROUP NY LLC09/22/2020
3 projects · most recent 06/21/2023
General Wiring
FiledStatusContractorScope
06/21/2023CompleteGT ELECTRICAL COMPANY INCGeneral Wiring
04/12/2021CompleteRICHARD NEU—
11/11/2020CompleteMARTINEZ ELECTRICAL CONTGeneral Wiring
▾Field Inspections (DOB CAP) — 1
DateTypeResultReport
06/27/2023Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic TestCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 40
DateRequirementInspectorRole
09/05/2023Maintenance informationYANNIK NEUFANGenergy_progress
09/05/2023HVAC insulation and sealing YANNIK NEUFANGenergy_progress
09/05/2023HVAC and service water heating system controls YANNIK NEUFANGenergy_progress
09/05/2023Fire-Resistant Penetrations and JointsAlexander Sheymanspecial
09/05/2023HVAC and service water heating equipment YANNIK NEUFANGenergy_progress
08/22/2023Maintenance informationYANNIK NEUFANGenergy_progress
08/22/2023HVAC and service water heating equipment YANNIK NEUFANGenergy_progress
08/22/2023HVAC and service water heating system controls YANNIK NEUFANGenergy_progress
08/22/2023Fire-Resistant Penetrations and JointsAlexander Sheymanspecial
08/22/2023HVAC insulation and sealing YANNIK NEUFANGenergy_progress
04/01/2021FinalRAFI HAMIDprogress
03/25/2021Fire-Resistant Penetrations and JointsAlexander Sheymanspecial
03/25/2021Mechanical SystemsAlexander Sheymanspecial
03/25/2021FinalAlexander Sheymanprogress
03/25/2021Electrical motorsYANNIK NEUFANGenergy_progress
03/25/2021Shutoff dampersYANNIK NEUFANGenergy_progress
03/25/2021Maintenance informationYANNIK NEUFANGenergy_progress
03/25/2021HVAC and service water heating system controls YANNIK NEUFANGenergy_progress
03/25/2021HVAC and service water heating equipment YANNIK NEUFANGenergy_progress
03/25/2021HVAC insulation and sealing YANNIK NEUFANGenergy_progress
03/22/2021Sprinkler SystemsAlexander Sheymanspecial
03/22/2021Fire-Resistant Penetrations and JointsAlexander Sheymanspecial
03/18/2021MasonryAlexander Sheymanspecial
03/18/2021Concrete - Cast-In-PlaceAlexander Sheymanspecial
03/18/2021Post-installed AnchorsAlexander Sheymanspecial
Latest 25 of 40.
▾Documents — 105 on file (BIS + DOB NOW)
▸Plans & Drawings10
▸DOB NOWPlans/Sketch3
09/01/2026B00483482-I1Request digital key ↗
09/01/2026B00496467-I1Request digital key ↗
09/01/2026B00496466-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Plumbing3
08/26/2026B00362538-I1Request digital key ↗
08/15/2026B00362538-P1Request digital key ↗
08/15/2026B00362538-P2Request digital key ↗
▸DOB NOWPlans/Sketch - Sprinkler2
09/02/2026B00399787-I1Request digital key ↗
08/15/2026B00399787-P1Request digital key ↗
▸DOB NOWPlans/Sketch - Mechanical Systems2
09/02/2026B00362531-I1Request digital key ↗
08/15/2026B00362531-P1Request digital key ↗
▸Applications & Permits9
▸BISPLAN / WORK APPROVAL APPLICATION4
10/29/2024321590925Open ↗
07/26/2023321590925Open ↗
04/01/2021321590925Open ↗
Showing 3 of 4 on file for this type
▸BISWORK PERMIT APPLICATION2
08/17/2021321590925Open ↗
09/22/2020321590925Open ↗
▸BISCERTIFICATE OF OCCUPANCY: APPLICATION1
06/12/2023321590925Open ↗
▸BISPARTIAL DEMO: 10-DAY NOTICE (FOR AL/EW-OT PERMITS)1
09/22/2020321590925Open ↗
▸BISPARTIAL DEMO PLAN & DS1 (FOR AL/EW-OT PERMITS)1
09/22/2020321590925Open ↗
▸Zoning, Tax Lot & Property Records2
▸BISVERIFY TAX LOT1
08/07/2023321590925Open ↗
▸BISCO OBJ: VERIFY ADDRESS-TOPO STAMP1
07/17/2023321590925Open ↗
▸Seals & Professional Certifications44
▸DOB NOWProgress Inspector Seal & Signature24
09/23/2026B00483482-I1Open ↗
08/26/2026B00362538-P2Open ↗
08/26/2026B00362538-P2Open ↗
Showing 3 of 24 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature10
09/23/2026B00483482-I1Open ↗
09/23/2026B00483482-I1Open ↗
09/23/2026B00483482-I1Open ↗
Showing 3 of 10 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature10
09/01/2026B00496467-I1Open ↗
09/01/2026B00496466-I1Open ↗
08/13/2026B00362538-I1Open ↗
Showing 3 of 10 on file for this type
▸Trade Schedules & Equipment1
▸BISDETECTOR:SMOKE-CERT. OF INSTALLATION1
10/27/2023321590925Open ↗
▸Safety & Tenant Protection1
▸BISSTREET TREE CHECKLIST1
07/31/2020321590925Open ↗
▸Environmental & Asbestos5
▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form4
08/13/2026B00483482-I1Open ↗
08/13/2026B00362538-I1Open ↗
08/13/2026B00362531-I1Open ↗
Showing 3 of 4 on file for this type
▸BISASBESTOS: COMPLETION OR CLOSEOUT (ACP20/21/5)1
09/22/2020321590925Open ↗
▸Energy Compliance11
▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY2
09/22/2020321590925Open ↗
07/31/2020321590925Open ↗
▸BISAIR SEALING AND INSULATION - VISUAL1
08/07/2023321590925Open ↗
▸BISFENESTRATION U-FACTOR & PRODUCT RATING1
08/07/2023321590925Open ↗
▸BISFENESTRATION AREAS1
08/07/2023321590925Open ↗
▸BISINSULATION PLACEMENT & R VALUES1
08/07/2023321590925Open ↗
▸BISLIGHTING IN DWELLING UNITS1
08/07/2023321590925Open ↗
▸BISENERGY CODE COMPLIANCE INSPECTIONS1
08/07/2023321590925Open ↗
▸BISAS-BUILT ENERGY ANALYSIS (EN2)1
08/07/2023321590925Open ↗
▸BISELECTRICAL ENERGY CONSUMPTION1
08/07/2023321590925Open ↗
▸BISFENESTRATION AIR LEAKAGE1
08/07/2023321590925Open ↗
▸Inspections & Test Reports7
▸BISTECHNICAL REPORT: RESPONSIBILITY4
09/22/2020321590925Open ↗
09/22/2020321590925Open ↗
09/22/2020321590925Open ↗
Showing 3 of 4 on file for this type
▸BISSTRUCTURAL STABILITY - ALTERATIONS OF EXISTING BUILDINGS1
08/07/2023321590925Open ↗
▸BISFIRE-RESISTANT PENETRATIONS AND JOINTS (FIRESTOP)1
08/07/2023321590925Open ↗
▸BISFIRE-RESISTIVE RATED CONSTRUCTION1
08/07/2023321590925Open ↗
▸Approvals, Objections & Sign-offs4
▸BISSCHEDULE A - OCCUPANCY / USE2
04/01/2021321590925Open ↗
03/12/2021321590925Open ↗
▸BISLETTERS - SUPPORTING DOCUMENTATION1
07/31/2020321590925Open ↗
▸BISSUPERSEDING LETTER1
08/17/2021321590925Open ↗
▸Cost, Insurance & Ownership2
▸BISCOST AFFIDAVIT1
07/31/2020321590925Open ↗
▸BISCOST AFFIDAVIT (FINAL): PW31
08/07/2023321590925Open ↗
▸Filing & Intake Forms6
▸BISADDITIONAL INFORMATION5
11/06/2023321590925Open ↗
07/31/2023321590925Open ↗
04/02/2021321590925Open ↗
Showing 3 of 5 on file for this type
▸BISBOROUGH INTAKE FORM1
08/17/2021321590925Open ↗
▸Other Documents3
▸BISMAINTENANCE INFORMATION1
08/07/2023321590925Open ↗
▸BISPERMANENT CERTIFICATE1
08/07/2023321590925Open ↗
▸BISPLOT DIAGRAM1
07/31/2020321590925Open ↗