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Four families
321 MAC DONOUGH STREET
BROOKLYN · BIN 3046845
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1886Year Built
3Stories
C3Building Class
R6BZoning
2,700 sfGross Floor Area
4Units
Rent Stabilized6 Open Violations ▸
Four families · Owner of record: BK PROPERTIES HOLDING LLC · 2,000 sf lot · 1.35 FAR built · Flood zone X
Locations of Work
Architecture
Roof2p · 1 filing · 20 docs
Floor 21p · 1 filing · 20 docs
Floor 11p · 1 filing · 20 docs
1 job · most recent 06/25/2024
General Wiring
FiledStatusContractorScope
06/25/2024CompleteFIRST STAR ELECTRIC INCGeneral Wiring
Building Lifecycle
All (62)Filed (6)Permit Issued (2)Signed Off (2)Violation (23)Inspection (4)Objection (4)Special Inspection (21)
05/05/2026
Violation issued (HPD, open)
A
04/27/2026
Signed off — Alteration
SUBSEQUENT FILING FOR PLUMBING WORK TYPE FOR THE INTERIOR RENOVATION OF EXISTING FOUR-STORY BUILDING. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01156993-I1
01/30/2026
Inspection — Pass-Final General Construction Non-Directive 14
Pass
View inspection ↗
01/20/2026
Signed off — Alteration
SUBSEQUENT FILING FOR PLUMBING WORK TYPE FOR THE INTERIOR RENOVATION OF EXISTING FOUR-STORY BUILDING. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01156993-S1
12/03/2025
Filed — Alteration
SUBSEQUENT FILING FOR PLUMBING WORK TYPE FOR THE INTERIOR RENOVATION OF EXISTING FOUR-STORY BUILDING. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01156993-P4
12/03/2025
Special inspection requirement — Energy Code Compliance Inspections
Xiao Huang
12/03/2025
Special inspection requirement — HVAC-R and service water heating equipment
Xiao Huang
12/03/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Xiao Huang
12/03/2025
Special inspection requirement — HVAC-R and service water heating system controls
Xiao Huang
12/03/2025
Special inspection requirement — HVAC-R and service water piping design and insulation
Xiao Huang
12/01/2025
Special inspection requirement — Mechanical Systems
Xiao Huang
12/01/2025
Special inspection requirement — Final
YUNHO LEE
11/21/2025
Objection resolved — Addressed
11/20/2025
Violation issued (HPD, open)
I
11/11/2025
Special inspection requirement — HVAC-R and service water heating system controls
Xiao Huang
11/11/2025
Special inspection requirement — Energy Code Compliance Inspections
Xiao Huang
11/11/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Xiao Huang
11/11/2025
Special inspection requirement — HVAC-R and service water heating equipment
Xiao Huang
11/11/2025
Special inspection requirement — HVAC-R and service water piping design and insulation
Xiao Huang
11/10/2025
Objection raised — Mechanical
10/30/2025
Filed — Alteration
SUBSEQUENT FILING FOR PLUMBING WORK TYPE FOR THE INTERIOR RENOVATION OF EXISTING FOUR-STORY BUILDING. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01156993-P3
10/22/2025
Special inspection requirement — Mechanical Systems
Xiao Huang
10/22/2025
Special inspection requirement — Final
YUNHO LEE
10/17/2025
Inspection — Fail-Final General Construction Non-Directive 14
Fail
View inspection ↗
10/06/2025
Objection resolved — Addressed
10/03/2025
Objection raised — Scope
09/24/2025
Filed — Alteration
SUBSEQUENT FILING FOR PLUMBING WORK TYPE FOR THE INTERIOR RENOVATION OF EXISTING FOUR-STORY BUILDING. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01156993-P1
06/26/2025
Inspection — Certified Gas-Gas-Piping-Roughing
Certified
View inspection ↗
06/24/2025
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
06/18/2025
Filed — Alteration
SUBSEQUENT FILING FOR PLUMBING WORK TYPE FOR THE INTERIOR RENOVATION OF EXISTING FOUR-STORY BUILDING. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01156993-P2
06/10/2025
Violation issued (HPD, open)
A
05/13/2025
Permit issued — Plumbing
B01156993-S1-PL
05/12/2025
Special inspection requirement — Final
YUNHO LEE
05/12/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Xiao Huang
05/12/2025
Special inspection requirement — Energy Code Compliance Inspections
Xiao Huang
05/12/2025
Special inspection requirement — HVAC-R and service water piping design and insulation
Xiao Huang
05/12/2025
Special inspection requirement — HVAC-R and service water heating equipment
Xiao Huang
05/12/2025
Special inspection requirement — HVAC-R and service water heating system controls
Xiao Huang
05/12/2025
Special inspection requirement — Mechanical Systems
Xiao Huang
05/05/2025
Filed — Alteration
SUBSEQUENT FILING FOR PLUMBING WORK TYPE FOR THE INTERIOR RENOVATION OF EXISTING FOUR-STORY BUILDING. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01156993-S1
04/24/2025
Permit issued — Mechanical Systems
B01156993-I1-GC-CX
01/16/2025
Filed — Alteration
SUBSEQUENT FILING FOR PLUMBING WORK TYPE FOR THE INTERIOR RENOVATION OF EXISTING FOUR-STORY BUILDING. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01156993-I1
11/29/2024
Violation issued (HPD, closed)
I
04/11/2024
Violation issued (HPD, closed)
A
03/23/2023
Violation issued (HPD, closed)
A
11/14/2022
Violation issued (HPD, closed)
I
03/01/2022
Violation issued (HPD, closed)
I
03/01/2022
Violation issued (HPD, closed)
A
04/12/2021
Violation issued (HPD, closed)
A
04/12/2021
Violation issued (HPD, closed)
I
10/30/2019
Violation issued (HPD, closed)
I
10/18/2018
Violation issued (HPD, closed)
I
11/27/2017
Violation issued (HPD, closed)
I
11/10/2016
Violation issued (HPD, closed)
I
10/13/2015
Violation issued (HPD, closed)
I
02/23/2015
Violation issued (HPD, closed)
I
04/11/1997
Violation issued (HPD, closed)
A
04/04/1988
Violation issued (HPD, open)
B
03/29/1988
Violation issued (HPD, open)
B
10/29/1986
Violation issued (HPD, open)
A
Latest 60 of 62 events.
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
BK PROPERTIES HOLDING1607/08/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
06/11/2024$1.6M—Private party → BK PROPERTIES HOLDING LLC$611/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
JAY ZHU ENGINEERING DESIGN PC312/03/2025
NYX ENGINEERING, PLLC310/30/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
NYX ENGINEERING, PLLC603/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
NTF MANAGEMENT INCGeneral Contractor107/08/2026
RRP PLUMBING CORPPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
NYX ENGINEERING, PLLC6118612/03/2025
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingSigned-offRRP PLUMBING CORP05/13/2025
DOB NOWMechanical SystemsSigned-offNTF MANAGEMENT INC04/24/2025
▾Field Inspections (DOB CAP) — 4
DateTypeResultReport
01/30/2026Pass-Final General Construction Non-Directive 14PassView ↗
10/17/2025Fail-Final General Construction Non-Directive 14FailView ↗
06/26/2025Certified Gas-Gas-Piping-RoughingCertifiedView ↗
06/24/2025Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 21
DateRequirementInspectorRole
12/03/2025Energy Code Compliance InspectionsXiao Huangprogress
12/03/2025HVAC-R and service water heating equipmentXiao Huangenergy_progress
12/03/2025Fire-Resistant Penetrations and JointsXiao Huangspecial
12/03/2025HVAC-R and service water heating system controlsXiao Huangenergy_progress
12/03/2025HVAC-R and service water piping design and insulationXiao Huangenergy_progress
12/01/2025Mechanical SystemsXiao Huangspecial
12/01/2025FinalYUNHO LEEprogress
11/11/2025HVAC-R and service water heating system controlsXiao Huangenergy_progress
11/11/2025Energy Code Compliance InspectionsXiao Huangprogress
11/11/2025Fire-Resistant Penetrations and JointsXiao Huangspecial
11/11/2025HVAC-R and service water heating equipmentXiao Huangenergy_progress
11/11/2025HVAC-R and service water piping design and insulationXiao Huangenergy_progress
10/22/2025Mechanical SystemsXiao Huangspecial
10/22/2025FinalYUNHO LEEprogress
05/12/2025FinalYUNHO LEEprogress
05/12/2025Fire-Resistant Penetrations and JointsXiao Huangspecial
05/12/2025Energy Code Compliance InspectionsXiao Huangprogress
05/12/2025HVAC-R and service water piping design and insulationXiao Huangenergy_progress
05/12/2025HVAC-R and service water heating equipmentXiao Huangenergy_progress
05/12/2025HVAC-R and service water heating system controlsXiao Huangenergy_progress
05/12/2025Mechanical SystemsXiao Huangspecial
▾Documents — 39 on file (BIS + DOB NOW)
▸Plans & Drawings6
▸DOB NOWPlans/Sketch6
08/19/2026B01156993-P4Request digital key ↗
08/19/2026B01156993-I1Request digital key ↗
08/19/2026B01156993-P2Request digital key ↗
Showing 3 of 6 on file for this type
▸Applications & Permits6
▸DOB NOWLPC Approval/Permit6
08/13/2026B01156993-S1Open ↗
08/13/2026B01156993-P2Open ↗
08/13/2026B01156993-P4Open ↗
Showing 3 of 6 on file for this type
▸Seals & Professional Certifications21
▸DOB NOWProgress Inspector Seal & Signature9
09/25/2026B01156993-I1Open ↗
08/31/2026B01156993-P3Open ↗
08/28/2026B01156993-P1Open ↗
Showing 3 of 9 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature6
08/19/2026B01156993-P4Open ↗
08/19/2026B01156993-P3Open ↗
08/19/2026B01156993-P2Open ↗
Showing 3 of 6 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature6
09/25/2026B01156993-I1Open ↗
08/31/2026B01156993-P3Open ↗
08/28/2026B01156993-P1Open ↗
Showing 3 of 6 on file for this type
▸Environmental & Asbestos6
▸DOB NOWDEP ACP-5: Asbestos Assessment Report6
08/19/2026B01156993-P4Open ↗
08/19/2026B01156993-P2Open ↗
08/19/2026B01156993-S1Open ↗
Showing 3 of 6 on file for this type