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Two family converted from one family
450 HALSEY STREET
BROOKLYN · BIN 3046371
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1899Year Built
2Stories
B3Building Class
R6BZoning
2,520 sfGross Floor Area
2Units
Two family converted from one family · 2,000 sf lot · 1.26 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralPlumbing
Roof4p · 1 filing · 9 docs
Floor 23p · 1 filing · 9 docs
Floor 13p · 1 filing · 9 docs
Cellar1p · 1 filing · 9 docs
Basement3p · 1 filing · 9 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
SYLVESTER R. YAVANA, ARCHITECT309/27/2021
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
IKSA GROUP603/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
ON GUK TSEElectrical603/21/2026
HI-RITE ELECTRIC CORP 003385General Contractor603/22/2026
SAMUEL & SONS P & H INCPlumbing407/08/2026
Building Lifecycle
All (6)Filed (3)Permit Issued (2)Signed Off (1)
02/25/2022
Signed off — Alteration
PLUMBING SCOPE OF WORK; CELLAR: NO WORK, BASEMENT: REPLACE OLD SHOWER, LAVATORY, TOILET WITH NEW ON EXISTING ROUGHING. GROUND FLOOR: NEW BATHTUB, TOILET, LAVATORY ON NEW ROUGHING. 002: REPLACE OLD BATHTUB, TOILET, LAVATORY WITH NEW ON NEW ROUGHING.
B00243507-I1
09/27/2021
Filed — Alteration
PLUMBING SCOPE OF WORK; CELLAR: NO WORK, BASEMENT: REPLACE OLD SHOWER, LAVATORY, TOILET WITH NEW ON EXISTING ROUGHING. GROUND FLOOR: NEW BATHTUB, TOILET, LAVATORY ON NEW ROUGHING. 002: REPLACE OLD BATHTUB, TOILET, LAVATORY WITH NEW ON NEW ROUGHING.
B00243507-P2
06/28/2021
Permit issued — Plumbing
B00243507-I1-PL
03/19/2021
Filed — Alteration
PLUMBING SCOPE OF WORK; CELLAR: NO WORK, BASEMENT: REPLACE OLD SHOWER, LAVATORY, TOILET WITH NEW ON EXISTING ROUGHING. GROUND FLOOR: NEW BATHTUB, TOILET, LAVATORY ON NEW ROUGHING. 002: REPLACE OLD BATHTUB, TOILET, LAVATORY WITH NEW ON NEW ROUGHING.
B00243507-P1
09/12/2020
Permit issued — Plumbing
B00243507-I1-PL
08/26/2020
Filed — Alteration
PLUMBING SCOPE OF WORK; CELLAR: NO WORK, BASEMENT: REPLACE OLD SHOWER, LAVATORY, TOILET WITH NEW ON EXISTING ROUGHING. GROUND FLOOR: NEW BATHTUB, TOILET, LAVATORY ON NEW ROUGHING. 002: REPLACE OLD BATHTUB, TOILET, LAVATORY WITH NEW ON NEW ROUGHING.
B00243507-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingSigned-offSAMUEL & SONS P & H INC06/28/2021
DOB NOWPlumbingSigned-offSAMUEL & SONS P & H INC09/12/2020
BISOTISSUEDA1 TOPLINE CONSTRUCTION10/29/2020
BISOTISSUEDA1 TOPLINE CONSTRUCTION07/08/2020
BISOTISSUEDA1 TOPLINE CONSTRUCTION02/11/2020
1 project · most recent 03/19/2020
General Wiring
FiledStatusContractorScope
03/19/2020CompleteHI-RITE ELECTRIC CORPGeneral Wiring
Nothing on file for this building.
▾Documents — 22 on file (BIS + DOB NOW)
▸Plans & Drawings3
▸DOB NOWPlans/Sketch - Plumbing3
09/02/2026B00243507-I1Request digital key ↗
09/02/2026B00243507-P1Request digital key ↗
08/15/2026B00243507-P2Request digital key ↗
▸Applications & Permits3
▸BISPLAN / WORK APPROVAL APPLICATION2
12/07/2020321997434Open ↗
10/24/2019321997434Open ↗
▸BISWORK PERMIT APPLICATION1
02/19/2020321997434Open ↗
▸Seals & Professional Certifications5
▸DOB NOWDPL-1: Design Professional Seal & Signature3
08/13/2026B00243507-I1Open ↗
08/13/2026B00243507-P2Open ↗
08/13/2026B00243507-P1Open ↗
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION2
02/19/2020321997434Open ↗
10/24/2019321997434Open ↗
▸Trade Schedules & Equipment1
▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE1
10/24/2019321997434Open ↗
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report3
08/13/2026B00243507-P2Open ↗
08/13/2026B00243507-P1Open ↗
08/13/2026B00243507-I1Open ↗
▸BISASBESTOS: CERTIFICATION (DEP ACP5)1
10/24/2019321997434Open ↗
▸Energy Compliance2
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS2
02/19/2020321997434Open ↗
10/24/2019321997434Open ↗
▸Approvals, Objections & Sign-offs1
▸BISLETTERS - SUPPORTING DOCUMENTATION1
10/24/2019321997434Open ↗
▸Cost, Insurance & Ownership1
▸BISCOST AFFIDAVIT1
10/24/2019321997434Open ↗
▸Filing & Intake Forms2
▸BISEFILING COVER SHEET1
10/24/2019321997434Open ↗
▸BISADDITIONAL INFORMATION1
12/07/2020321997434Open ↗