← Back
Two family brick
421 UNION STREET
BROOKLYN · BIN 3007175
💬 Discuss this project
1899Year Built
2Stories
B1Building Class
R6BZoning
2,289 sfGross Floor Area
2Units
Rent Stabilized3 Open Violations ▸
Two family brick · 2,000 sf lot · 1.14 FAR built · Flood zone X
Locations of Work
StructuralPlumbing
Floor 11p · 1 filing · 17 docs
Cellar3p · 1 filing · 16 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
EAB ENGINEERING PC607/05/2024
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
ZCREW CONSTRUCTION CORPGeneral Contractor407/08/2026
CROSSFIELD PLBG.&HTGPlumbing307/08/2026
J Y ELECTRIC INCElectrical103/22/2026
J. AND F. REFRIGERATION,*General Contractor107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
EAB ENGINEERING, PC2048607/05/2024
Building Lifecycle
All (21)Filed (6)Permit Issued (6)Signed Off (3)Violation (6)
11/24/2025
Violation issued (HPD, open)
I
03/07/2025
Signed off — Alteration
Remove existing concrete floor slab and soil 21" below existing cellar slab . Floor slab removal to stay 2'-0" away from existing foundation wall in all directions. New slab to be 4" concrete with WWF reinforcement. No change to use, egress or occupancy.
B00990358-I1
03/07/2025
Permit issued — General Construction
B00990358-I1-GC
01/14/2025
Signed off — Alteration
INSTALL MINI SPILIT DUCTLESS SYSTEM CONDENSERS OUTSIDE IN THE REAR YARD AND THE ASSOCIATED AIR HANDLERS INSIDE IN CELLAR, BASEMENT AND 1-2 FLOOR IN CONJUNCTION WITH THE CONSTRUCTION APPLICATION #340754801. NO CHANGE TO USE, EGRESS OR OCCUPANCY.
B00990530-I1
12/11/2024
Signed off — Alteration
REMOVE PLUMBING FIXTURES IN BASEMENT AND 1ST FLOOR AND INSTALL NEW PLUMBING FIXTURES IN BASEMENT AND 1ST FLOOR. REMOVE BOILER AND RELOCATE HOT WATER HEATER IN CELLAR.
B00382520-I1
12/04/2024
Violation issued (HPD, open)
I
07/05/2024
Filed — Alteration
REMOVE PLUMBING FIXTURES IN BASEMENT AND 1ST FLOOR AND INSTALL NEW PLUMBING FIXTURES IN BASEMENT AND 1ST FLOOR. REMOVE BOILER AND RELOCATE HOT WATER HEATER IN CELLAR.
B00382520-P2
05/17/2024
Filed — Alteration
REMOVE PLUMBING FIXTURES IN BASEMENT AND 1ST FLOOR AND INSTALL NEW PLUMBING FIXTURES IN BASEMENT AND 1ST FLOOR. REMOVE BOILER AND RELOCATE HOT WATER HEATER IN CELLAR.
B00382520-P1
04/17/2024
Permit issued — Mechanical Systems
B00990530-I1-MS
04/15/2024
Permit issued — General Construction
B00990358-I1-EA
04/11/2024
Permit issued — Plumbing
B00382520-I1-PL
03/28/2024
Filed — Alteration
INSTALL MINI SPILIT DUCTLESS SYSTEM CONDENSERS OUTSIDE IN THE REAR YARD AND THE ASSOCIATED AIR HANDLERS INSIDE IN CELLAR, BASEMENT AND 1-2 FLOOR IN CONJUNCTION WITH THE CONSTRUCTION APPLICATION #340754801. NO CHANGE TO USE, EGRESS OR OCCUPANCY.
B00990530-I1
03/20/2024
Filed — Alteration
Remove existing concrete floor slab and soil 21" below existing cellar slab . Floor slab removal to stay 2'-0" away from existing foundation wall in all directions. New slab to be 4" concrete with WWF reinforcement. No change to use, egress or occupancy.
B00990358-P1
01/18/2024
Filed — Alteration
Remove existing concrete floor slab and soil 21" below existing cellar slab . Floor slab removal to stay 2'-0" away from existing foundation wall in all directions. New slab to be 4" concrete with WWF reinforcement. No change to use, egress or occupancy.
B00990358-I1
11/28/2023
Violation issued (HPD, open)
I
03/17/2022
Violation issued (HPD, closed)
I
10/25/2021
Permit issued — Plumbing
B00382520-I1-PL
04/21/2021
Violation issued (HPD, closed)
I
11/02/2020
Permit issued — Plumbing
B00382520-I1-PL
08/13/2020
Filed — Alteration
REMOVE PLUMBING FIXTURES IN BASEMENT AND 1ST FLOOR AND INSTALL NEW PLUMBING FIXTURES IN BASEMENT AND 1ST FLOOR. REMOVE BOILER AND RELOCATE HOT WATER HEATER IN CELLAR.
B00382520-I1
11/07/2019
Violation issued (HPD, closed)
I
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWGeneral ConstructionSigned-offZCREW CONSTRUCTION CORP03/07/2025
DOB NOWMechanical SystemsSigned-offJ. AND F. REFRIGERATION,*04/17/2024
DOB NOWGeneral ConstructionSigned-offZCREW CONSTRUCTION CORP04/15/2024
DOB NOWPlumbingSigned-offCROSSFIELD PLBG.&HTG04/11/2024
DOB NOWPlumbingSigned-offCROSSFIELD PLBG.&HTG10/25/2021
DOB NOWPlumbingSigned-offCROSSFIELD PLBG.&HTG11/02/2020
BISOTISSUEDM. INT'L ENGINEERING PLLC11/16/2023
BISOTISSUEDM. INT'L ENGINEERING PLLC07/13/2023
BISOTISSUEDM. INT'L ENGINEERING PLLC04/19/2022
BISOTISSUEDM. INT'L ENGINEERING PLLC04/12/2021
BISOTISSUEDM. INT'L ENGINEERING PLLC03/09/2021
BISOTISSUEDM. INT'L ENGINEERING PLLC11/20/2020
2 projects · most recent 10/24/2024
General Wiring
FiledStatusContractorScope
10/24/2024CompleteJ Y ELECTRIC INC2 meters
09/19/2024CompleteJ Y ELECTRIC INCGeneral Wiring
▾Special Inspection Requirements (DOB NOW) — 16
DateRequirementInspectorRole
07/11/2024HVAC insulation and sealing Iraj Issapourenergy_progress
07/11/2024Energy Code Compliance InspectionsIraj Issapourprogress
07/11/2024Fire-Resistant Penetrations and JointsIraj Issapourspecial
04/01/2024Energy Code Compliance InspectionsIraj Issapourprogress
03/29/2024Insulation placement and R valuesIraj Issapourenergy_progress
03/29/2024Structural Stability – Alterations of existing buildingsIraj Issapourspecial
03/29/2024Concrete - Cast-In-PlaceIraj Issapourspecial
03/29/2024Excavations - Sheeting, Shoring, and BracingIraj Issapourspecial
03/29/2024FinalIraj Issapourprogress
01/31/2024Excavations - Sheeting, Shoring, and BracingIraj Issapourspecial
01/31/2024Concrete - Cast-In-PlaceIraj Issapourspecial
01/31/2024FinalIraj Issapourprogress
01/31/2024Insulation placement and R valuesIraj Issapourenergy_progress
01/31/2024Structural Stability – Alterations of existing buildingsIraj Issapourspecial
01/15/2024HVAC insulation and sealing Iraj Issapourenergy_progress
01/15/2024Fire-Resistant Penetrations and JointsIraj Issapourspecial
▾Documents — 64 on file (BIS + DOB NOW)
▸Plans & Drawings6
▸DOB NOWPlans/Sketch3
08/26/2026B00990358-I1Request digital key ↗
08/26/2026B00990358-P1Request digital key ↗
08/25/2026B00990530-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Plumbing3
09/02/2026B00382520-P2Request digital key ↗
09/02/2026B00382520-I1Request digital key ↗
08/15/2026B00382520-P1Request digital key ↗
▸Applications & Permits4
▸BISPLAN / WORK APPROVAL APPLICATION2
09/18/2020340754801Open ↗
08/24/2020340754801Open ↗
▸BISWORK PERMIT APPLICATION1
11/20/2020340754801Open ↗
▸BISPARTIAL DEMO: 10-DAY NOTICE (FOR AL/EW-OT PERMITS)1
11/17/2020340754801Open ↗
▸Zoning, Tax Lot & Property Records1
▸BISZONING DIAGRAM1
10/26/2020340754801Open ↗
▸Seals & Professional Certifications24
▸DOB NOWProgress Inspector Seal & Signature8
09/01/2026B00990358-P1Open ↗
09/01/2026B00990358-P1Open ↗
08/28/2026B00382520-P1Open ↗
Showing 3 of 8 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature8
09/01/2026B00990358-P1Open ↗
09/01/2026B00990358-P1Open ↗
09/01/2026B00990358-P1Open ↗
Showing 3 of 8 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature6
08/26/2026B00990358-P1Open ↗
08/26/2026B00990358-I1Open ↗
08/25/2026B00990530-I1Open ↗
Showing 3 of 6 on file for this type
▸BISAPPLICANT OWNER SIGNATURE1
08/24/2020340754801Open ↗
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY1
08/24/2020340754801Open ↗
▸Safety & Tenant Protection5
▸DOB NOWTenant Protection Plan3
08/13/2026B00382520-P2Open ↗
08/13/2026B00382520-I1Open ↗
08/13/2026B00382520-P1Open ↗
▸BISDEMOLITION SUBMITTAL CERTIFICATION FORM1
11/17/2020340754801Open ↗
▸BISTENANT PROTECTION PLAN AND NOTES1
08/24/2020340754801Open ↗
▸Environmental & Asbestos5
▸DOB NOWDEP ACP-5: Asbestos Assessment Report3
08/26/2026B00990358-I1Open ↗
08/26/2026B00990358-P1Open ↗
08/25/2026B00990530-I1Open ↗
▸BISASBESTOS: COMPLETION OR CLOSEOUT (ACP20/21/5)1
08/24/2020340754801Open ↗
▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form1
08/13/2026B00382520-I1Open ↗
▸Energy Compliance8
▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY6
01/17/2025340754801Open ↗
01/15/2025340754801Open ↗
01/15/2025340754801Open ↗
Showing 3 of 6 on file for this type
▸BISAS-BUILT ENERGY ANALYSIS (EN2)1
01/15/2025340754801Open ↗
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY FOR ENERGY CODE PROGRESS INSPECTIONS1
08/24/2020340754801Open ↗
▸Inspections & Test Reports5
▸BISTECHNICAL REPORT: RESPONSIBILITY5
01/15/2025340754801Open ↗
01/15/2025340754801Open ↗
11/04/2020340754801Open ↗
Showing 3 of 5 on file for this type
▸Approvals, Objections & Sign-offs3
▸BISLETTERS - SUPPORTING DOCUMENTATION2
01/21/2025340754801Open ↗
10/07/2020340754801Open ↗
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST1
01/21/2025340754801Open ↗
▸Cost, Insurance & Ownership2
▸BISCOST AFFIDAVIT1
10/05/2020340754801Open ↗
▸BISCOST AFFIDAVIT (FINAL): PW31
01/15/2025340754801Open ↗
▸Filing & Intake Forms1
▸BISEFILING JOB APPLICATION COVER SHEET1
08/24/2020340754801Open ↗