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One family attached or semi-detached
724 CHAUNCEY STREET
BROOKLYN · BIN 3080250
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1899Year Built
2Stories
A5Building Class
R6Zoning
1,872 sfGross Floor Area
1Units
Rent Stabilized0 Open ViolationsFDNY Report ↗
One family attached or semi-detached · Owner of record: MTEK PARK LLC · 1,950 sf lot · 0.96 FAR built · Flood zone X
Locations of Work
ElectricalMechanical
Floor 22p · 1 filing · 20 docs
Floor 11p · 1 filing · 20 docs
1 job · most recent 07/01/2025
General Wiring
FiledStatusContractorScope
07/01/2025CompleteK.A.B. ELECTRIC CORPGeneral Wiring
Building Lifecycle
All (85)Filed (6)Permit Issued (3)Signed Off (3)Violation (35)Inspection (8)Special Inspection (30)
03/31/2026
Signed off — Alteration
EXISTING 3 FAMILY BUILDING WITH INTERIOR RENOVATION WITH PARTITION WORK AT THE CELLAR,BASEMENT,1ST,2ND FLOOR IN THE REAR.NO CHANGE IN USE,MEANS OF EGRESS OR OCCUPANCY.
B01217016-S1
03/16/2026
Signed off — Alteration
EXISTING 3 FAMILY BUILDING WITH INTERIOR RENOVATION WITH PARTITION WORK AT THE CELLAR,BASEMENT,1ST,2ND FLOOR IN THE REAR.NO CHANGE IN USE,MEANS OF EGRESS OR OCCUPANCY.
B01217016-S2
03/16/2026
Signed off — Alteration
EXISTING 3 FAMILY BUILDING WITH INTERIOR RENOVATION WITH PARTITION WORK AT THE CELLAR,BASEMENT,1ST,2ND FLOOR IN THE REAR.NO CHANGE IN USE,MEANS OF EGRESS OR OCCUPANCY.
B01217016-I1
03/13/2026
Inspection — Certified Storm Drainage-ST-Piping-Roughing
Certified
View inspection ↗
03/13/2026
Inspection — Certified Storm Drainage-ST-Piping-Underground
Certified
View inspection ↗
03/06/2026
Inspection — Pass-Final General Construction Non-Directive 14
Pass
View inspection ↗
02/06/2026
Special inspection requirement — Mechanical Systems
SIMON JIANG
02/06/2026
Special inspection requirement — Maintenance information
Jaeyoung Jang
02/06/2026
Special inspection requirement — HVAC-R and service water heating system controls
Jaeyoung Jang
02/06/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Jaeyoung Jang
02/06/2026
Special inspection requirement — HVAC-R and service water heating equipment
Jaeyoung Jang
02/06/2026
Special inspection requirement — Final
Jaeyoung Jang
02/06/2026
Special inspection requirement — Energy Code Compliance Inspections
Jaeyoung Jang
02/05/2026
Special inspection requirement — Maintenance information
Jaeyoung Jang
02/05/2026
Special inspection requirement — HVAC-R and service water heating equipment
Jaeyoung Jang
02/05/2026
Special inspection requirement — HVAC-R and service water heating system controls
Jaeyoung Jang
02/05/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Jaeyoung Jang
02/05/2026
Special inspection requirement — Energy Code Compliance Inspections
Jaeyoung Jang
02/03/2026
Filed — Alteration
EXISTING 3 FAMILY BUILDING WITH INTERIOR RENOVATION WITH PARTITION WORK AT THE CELLAR,BASEMENT,1ST,2ND FLOOR IN THE REAR.NO CHANGE IN USE,MEANS OF EGRESS OR OCCUPANCY.
B01217016-P2
02/03/2026
Filed — Alteration
EXISTING 3 FAMILY BUILDING WITH INTERIOR RENOVATION WITH PARTITION WORK AT THE CELLAR,BASEMENT,1ST,2ND FLOOR IN THE REAR.NO CHANGE IN USE,MEANS OF EGRESS OR OCCUPANCY.
B01217016-P1
02/03/2026
Filed — Alteration
EXISTING 3 FAMILY BUILDING WITH INTERIOR RENOVATION WITH PARTITION WORK AT THE CELLAR,BASEMENT,1ST,2ND FLOOR IN THE REAR.NO CHANGE IN USE,MEANS OF EGRESS OR OCCUPANCY.
B01217016-P3
02/03/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
Jaeyoung Jang
02/03/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
SIMON JIANG
02/03/2026
Special inspection requirement — Energy Code Compliance Inspections
Jaeyoung Jang
02/03/2026
Special inspection requirement — Fire-Resistance Rated Construction
Jaeyoung Jang
02/03/2026
Special inspection requirement — Air barrier - visual inspection
Jaeyoung Jang
02/03/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Jaeyoung Jang
02/03/2026
Special inspection requirement — Fenestration air leakage
Jaeyoung Jang
02/03/2026
Special inspection requirement — HVAC-R and service water heating equipment
Jaeyoung Jang
02/03/2026
Special inspection requirement — Insulation placement and R values
Jaeyoung Jang
02/03/2026
Special inspection requirement — Fenestration areas
Jaeyoung Jang
02/03/2026
Special inspection requirement — HVAC-R and service water heating system controls
Jaeyoung Jang
02/03/2026
Special inspection requirement — Interior lighting power
Jaeyoung Jang
02/03/2026
Special inspection requirement — Metering
Jaeyoung Jang
02/02/2026
Special inspection requirement — Mechanical Systems
SIMON JIANG
02/02/2026
Special inspection requirement — Maintenance information
Jaeyoung Jang
02/02/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Jaeyoung Jang
02/02/2026
Special inspection requirement — HVAC-R and service water heating system controls
Jaeyoung Jang
02/02/2026
Special inspection requirement — Final
Jaeyoung Jang
01/23/2026
Inspection — Fail-Final General Construction Non-Directive 14
Fail
View inspection ↗
01/06/2026
Inspection — Fail-Final General Construction Non-Directive 14
Fail
View inspection ↗
11/18/2025
Violation issued (HPD, closed)
I
10/16/2025
Inspection — Certified Gas-Gas-Piping-Roughing
Certified
View inspection ↗
10/16/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
10/16/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
09/04/2025
Permit issued — Mechanical Systems
B01217016-S2-MS
08/19/2025
Permit issued — Plumbing
B01217016-S1-PL
07/22/2025
Permit issued — General Construction
B01217016-I1-GC
06/24/2025
Filed — Alteration
EXISTING 3 FAMILY BUILDING WITH INTERIOR RENOVATION WITH PARTITION WORK AT THE CELLAR,BASEMENT,1ST,2ND FLOOR IN THE REAR.NO CHANGE IN USE,MEANS OF EGRESS OR OCCUPANCY.
B01217016-S1
06/24/2025
Filed — Alteration
EXISTING 3 FAMILY BUILDING WITH INTERIOR RENOVATION WITH PARTITION WORK AT THE CELLAR,BASEMENT,1ST,2ND FLOOR IN THE REAR.NO CHANGE IN USE,MEANS OF EGRESS OR OCCUPANCY.
B01217016-S2
06/24/2025
Filed — Alteration
EXISTING 3 FAMILY BUILDING WITH INTERIOR RENOVATION WITH PARTITION WORK AT THE CELLAR,BASEMENT,1ST,2ND FLOOR IN THE REAR.NO CHANGE IN USE,MEANS OF EGRESS OR OCCUPANCY.
B01217016-I1
06/09/2025
Violation issued (HPD, closed)
A
11/26/2024
Violation issued (HPD, closed)
I
04/09/2024
Violation issued (HPD, closed)
A
11/17/2023
Violation issued (HPD, closed)
I
03/21/2023
Violation issued (HPD, closed)
A
11/07/2022
Violation issued (HPD, closed)
I
02/23/2022
Violation issued (HPD, closed)
A
02/23/2022
Violation issued (HPD, closed)
I
04/07/2021
Violation issued (HPD, closed)
I
Latest 60 of 85 events.
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
MTEK1604/09/2026
MTEK PARK LLC103/21/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
06/18/2025$1.2M—Private party → MTEK PARK LLC$622/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
CLIP ARCHITECTS602/03/2026
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
WM ARCH1203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
TURN KEY NYC LLCGeneral Contractor204/09/2026
M & M PIPING AND HEATINGPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
SIMON7555402/03/2026
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWMechanical SystemsSigned-offTURN KEY NYC LLC09/04/2025
DOB NOWPlumbingSigned-offM & M PIPING AND HEATING08/19/2025
DOB NOWGeneral ConstructionSigned-offTURN KEY NYC LLC07/22/2025
▾Field Inspections (DOB CAP) — 8
DateTypeResultReport
03/13/2026Certified Storm Drainage-ST-Piping-RoughingCertifiedView ↗
03/13/2026Certified Storm Drainage-ST-Piping-UndergroundCertifiedView ↗
03/06/2026Pass-Final General Construction Non-Directive 14PassView ↗
01/23/2026Fail-Final General Construction Non-Directive 14FailView ↗
01/06/2026Fail-Final General Construction Non-Directive 14FailView ↗
10/16/2025Certified Gas-Gas-Piping-RoughingCertifiedView ↗
10/16/2025Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
10/16/2025Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 37
DateRequirementInspectorRole
02/06/2026Mechanical SystemsSIMON JIANGspecial
02/06/2026Maintenance informationJaeyoung Jangenergy_progress
02/06/2026HVAC-R and service water heating system controlsJaeyoung Jangenergy_progress
02/06/2026HVAC-R and service water piping design and insulationJaeyoung Jangenergy_progress
02/06/2026HVAC-R and service water heating equipmentJaeyoung Jangenergy_progress
02/06/2026FinalJaeyoung Jangprogress
02/06/2026Energy Code Compliance InspectionsJaeyoung Jangprogress
02/05/2026Maintenance informationJaeyoung Jangenergy_progress
02/05/2026HVAC-R and service water heating equipmentJaeyoung Jangenergy_progress
02/05/2026HVAC-R and service water heating system controlsJaeyoung Jangenergy_progress
02/05/2026HVAC-R and service water piping design and insulationJaeyoung Jangenergy_progress
02/05/2026Energy Code Compliance InspectionsJaeyoung Jangprogress
02/03/2026Fenestration and door U-factor and product ratingsJaeyoung Jangenergy_progress
02/03/2026Fire-Resistant Penetrations and JointsSIMON JIANGspecial
02/03/2026Energy Code Compliance InspectionsJaeyoung Jangprogress
02/03/2026Fire-Resistance Rated ConstructionJaeyoung Jangprogress
02/03/2026Air barrier - visual inspectionJaeyoung Jangenergy_progress
02/03/2026HVAC-R and service water piping design and insulationJaeyoung Jangenergy_progress
02/03/2026Fenestration air leakageJaeyoung Jangenergy_progress
02/03/2026HVAC-R and service water heating equipmentJaeyoung Jangenergy_progress
02/03/2026Insulation placement and R valuesJaeyoung Jangenergy_progress
02/03/2026Fenestration areasJaeyoung Jangenergy_progress
02/03/2026HVAC-R and service water heating system controlsJaeyoung Jangenergy_progress
02/03/2026Interior lighting powerJaeyoung Jangenergy_progress
02/03/2026MeteringJaeyoung Jangenergy_progress
Latest 25 of 37.
▾Documents — 28 on file (BIS + DOB NOW)
▸Plans & Drawings5
▸DOB NOWPlans/Sketch5
08/18/2026B01217016-S1Request digital key ↗
08/18/2026B01217016-P3Request digital key ↗
08/18/2026B01217016-P2Request digital key ↗
Showing 3 of 5 on file for this type
▸Seals & Professional Certifications18
▸DOB NOWProgress Inspector Seal & Signature10
09/01/2026B01217016-S1Open ↗
09/01/2026B01217016-S1Open ↗
08/28/2026B01217016-P3Open ↗
Showing 3 of 10 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature5
08/18/2026B01217016-S1Open ↗
08/18/2026B01217016-P3Open ↗
08/18/2026B01217016-P2Open ↗
Showing 3 of 5 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature3
08/28/2026B01217016-P3Open ↗
08/27/2026B01217016-S2Open ↗
08/22/2026B01217016-P2Open ↗
▸Environmental & Asbestos5
▸DOB NOWDEP ACP-5: Asbestos Assessment Report5
08/18/2026B01217016-P3Open ↗
08/18/2026B01217016-P2Open ↗
08/18/2026B01217016-P1Open ↗
Showing 3 of 5 on file for this type