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One family attached or semi-detached
270 BAY 22 STREET
BROOKLYN · BIN 3169845
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1940Year Built
1Stories
A5Building Class
R5Zoning
1,536 sfGross Floor Area
1Units
One family attached or semi-detached · 2,993 sf lot · 0.51 FAR built · Flood zone X
Locations of Work
ArchitectureStructural
Floor 13p · 1 filing · 20 docs
Basement2p · 1 filing · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
12/22/2023$975K—Private party → Private party$635/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
FACTORY ENGINEERING WORKS PLLC310/04/2024
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
KON HO LEE CONSULTING ENGINEER PLL603/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
YUNG WAY CONSTRUCTION INC.General Contractor203/21/2026
CROSSFIELD PLBG.&HTGPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
FACTORY ENGINEERING WORKS8855310/04/2024
Building Lifecycle
All (41)Filed (3)Permit Issued (2)Signed Off (1)Inspection (5)Objection (14)Special Inspection (16)
12/17/2024
Inspection — Certified Water and Sanitary-WS-Fixtures-Finish
Certified
View inspection ↗
12/12/2024
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
11/26/2024
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
11/26/2024
Inspection — Certified Water and Sanitary-WS-Fixtures-Finish
Certified
View inspection ↗
11/22/2024
Signed off — Alteration CO
CONVERT EXISTING ONE FAMILY TO TWO FAMILY DWELLING. OBTAIN NEW CERTIFICATE OF OCCUPANCY.
B01003748-S1
11/15/2024
Objection resolved — Addressed
10/17/2024
Objection resolved — Addressed
10/17/2024
Objection resolved — Addressed
10/10/2024
Objection raised — Scope
10/10/2024
Objection raised — Scope
10/10/2024
Objection raised — Scope
10/04/2024
Filed — Alteration CO
CONVERT EXISTING ONE FAMILY TO TWO FAMILY DWELLING. OBTAIN NEW CERTIFICATE OF OCCUPANCY.
B01003748-P1
10/04/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
Kui He
10/04/2024
Special inspection requirement — Energy Code Compliance Inspections
Kui He
10/04/2024
Special inspection requirement — Fire-Resistance Rated Construction
Kui He
10/04/2024
Special inspection requirement — Maintenance information
Kui He
10/04/2024
Special inspection requirement — Fenestration air leakage
Kui He
10/04/2024
Special inspection requirement — Permanent certificate
Kui He
10/04/2024
Special inspection requirement — Metering
Kui He
10/04/2024
Special inspection requirement — Fenestration and door U-factor and product ratings
Kui He
10/04/2024
Special inspection requirement — Interior lighting power
Kui He
10/04/2024
Special inspection requirement — Fenestration areas
Kui He
08/26/2024
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
04/29/2024
Permit issued — Plumbing
B01003748-S1-PL
04/29/2024
Permit issued — General Construction
B01003748-I1-GC
04/24/2024
Objection resolved — Addressed
03/21/2024
Objection raised — Scope
03/20/2024
Filed — Alteration CO
CONVERT EXISTING ONE FAMILY TO TWO FAMILY DWELLING. OBTAIN NEW CERTIFICATE OF OCCUPANCY.
B01003748-S1
03/16/2024
Objection resolved — Addressed
03/15/2024
Objection resolved — Addressed
03/15/2024
Objection resolved — Addressed
03/15/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
Kui He
03/15/2024
Special inspection requirement — Energy Code Compliance Inspections
Kui He
03/15/2024
Special inspection requirement — HVAC-R and service water piping design and insulation
Kui He
03/15/2024
Special inspection requirement — HVAC-R and service water heating system controls
Kui He
03/15/2024
Special inspection requirement — HVAC-R and service water heating equipment
Kui He
03/15/2024
Special inspection requirement — Maintenance information
Kui He
02/26/2024
Objection raised — Scope
02/26/2024
Objection raised — Scope
02/26/2024
Objection raised — Scope
02/20/2024
Filed — Alteration CO
CONVERT EXISTING ONE FAMILY TO TWO FAMILY DWELLING. OBTAIN NEW CERTIFICATE OF OCCUPANCY.
B01003748-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingSigned-offCROSSFIELD PLBG.&HTG04/29/2024
DOB NOWGeneral ConstructionPermit IssuedB & A COMMERCIAL INC04/29/2024
1 project · most recent 02/07/2024
General Wiring
FiledStatusContractorScope
02/07/2024CompleteKWONG MING ELECTRIC INCGeneral Wiring
▾Field Inspections (DOB CAP) — 5
DateTypeResultReport
12/17/2024Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
12/12/2024Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
11/26/2024Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
11/26/2024Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
08/26/2024Pass-Final CND-Occupancy InspectionPassView ↗
▾Special Inspection Requirements (DOB NOW) — 16
DateRequirementInspectorRole
10/04/2024Fire-Resistant Penetrations and JointsKui Hespecial
10/04/2024Energy Code Compliance InspectionsKui Heprogress
10/04/2024Fire-Resistance Rated ConstructionKui Heprogress
10/04/2024Maintenance informationKui Heenergy_progress
10/04/2024Fenestration air leakageKui Heenergy_progress
10/04/2024Permanent certificateKui Heenergy_progress
10/04/2024MeteringKui Heenergy_progress
10/04/2024Fenestration and door U-factor and product ratingsKui Heenergy_progress
10/04/2024Interior lighting powerKui Heenergy_progress
10/04/2024Fenestration areasKui Heenergy_progress
03/15/2024Fire-Resistant Penetrations and JointsKui Hespecial
03/15/2024Energy Code Compliance InspectionsKui Heprogress
03/15/2024HVAC-R and service water piping design and insulationKui Heenergy_progress
03/15/2024HVAC-R and service water heating system controlsKui Heenergy_progress
03/15/2024HVAC-R and service water heating equipmentKui Heenergy_progress
03/15/2024Maintenance informationKui Heenergy_progress
▾Documents — 31 on file (BIS + DOB NOW)
▸Plans & Drawings3
▸DOB NOWPlans/Sketch3
08/23/2026B01003748-I1Request digital key ↗
08/23/2026B01003748-P1Request digital key ↗
08/23/2026B01003748-S1Request digital key ↗
▸Zoning, Tax Lot & Property Records1
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026B01003748-I1Open ↗
▸Seals & Professional Certifications19
▸DOB NOWProgress Inspector Seal & Signature14
08/25/2026B01003748-S1Open ↗
08/25/2026B01003748-S1Open ↗
08/25/2026B01003748-S1Open ↗
Showing 3 of 14 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature3
08/23/2026B01003748-I1Open ↗
08/23/2026B01003748-P1Open ↗
08/23/2026B01003748-S1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature2
08/25/2026B01003748-S1Open ↗
08/23/2026B01003748-P1Open ↗
▸Safety & Tenant Protection3
▸DOB NOWStreet Tree Checklist2
08/13/2026B01003748-I1Open ↗
08/13/2026B01003748-P1Open ↗
▸DOB NOWStreet Tree Sign Off1
08/13/2026B01003748-I1Open ↗
▸Environmental & Asbestos3
▸DOB NOWDEP ACP-5: Asbestos Assessment Report3
08/23/2026B01003748-I1Open ↗
08/23/2026B01003748-P1Open ↗
08/23/2026B01003748-S1Open ↗
▸Other Documents2
▸DOB NOWProperty Ownership Certification2
08/23/2026B01003748-I1Open ↗
08/23/2026B01003748-P1Open ↗