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Two family converted from one family
344 HANCOCK STREET
BROOKLYN · BIN 3052818
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1899Year Built
2Stories
B3Building Class
R6BZoning
2,268 sfGross Floor Area
2Units
Rent Stabilized3 Open Violations ▸
Two family converted from one family · 1,800 sf lot · 1.26 FAR built · Flood zone X
Locations of Work
ArchitectureElectrical
Floor 21p · 1 filing · 20 docs
Floor 1
Cellar1p · 1 filing · 20 docs
1 job · most recent 08/06/2026
Gas Storm Water/Sanitary
FiledStatusContractorScope
08/06/2026Signed-offM & M PIPING AND HEATINGGas, Storm, Water/Sanitary
1 job · most recent 02/10/2026
General Wiring
FiledStatusContractorScope
02/10/2026CompleteAMERICAN POWER ELECT CONSGeneral Wiring
Building Lifecycle
All (49)Filed (7)Permit Issued (2)Signed Off (2)Inspection (8)Special Inspection (30)
08/20/2026
Signed off — Alteration
EXISTING ONE-FAMILY HOUSE WITH PLUMBING WORK AT CELLAR, BASEMENT, 1 ST & 2ND FLOOR. JOB FILED TO RELATED TO ALT2 APPLICATION # B01284825-I1.2. NO CHANGE IN USE, MEANS OF EGRESS OR OCCUPANCY
B01284825-I1
08/18/2026
Inspection — Pass-Final General Construction Non-Directive 14
Pass
View inspection ↗
08/06/2026
Filed — Alteration
EXISTING ONE-FAMILY HOUSE WITH PLUMBING WORK AT CELLAR, BASEMENT, 1 ST & 2ND FLOOR. JOB FILED TO RELATED TO ALT2 APPLICATION # B01284825-I1.2. NO CHANGE IN USE, MEANS OF EGRESS OR OCCUPANCY
B01284825-P6
08/06/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
CALVIN TRAN
08/06/2026
Special inspection requirement — Maintenance information
CALVIN TRAN
08/06/2026
Special inspection requirement — HVAC-R and service water heating system controls
CALVIN TRAN
08/06/2026
Special inspection requirement — Insulation placement and R values
CALVIN TRAN
08/06/2026
Special inspection requirement — Interior lighting power
CALVIN TRAN
08/06/2026
Special inspection requirement — Air barrier - visual inspection
CALVIN TRAN
08/06/2026
Special inspection requirement — HVAC-R and service water heating equipment
CALVIN TRAN
08/06/2026
Special inspection requirement — Fenestration areas
CALVIN TRAN
08/06/2026
Special inspection requirement — Fenestration air leakage
CALVIN TRAN
08/06/2026
Special inspection requirement — Metering
CALVIN TRAN
08/06/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
CALVIN TRAN
08/06/2026
Special inspection requirement — Fire-Resistance Rated Construction
CALVIN TRAN
08/06/2026
Special inspection requirement — Energy Code Compliance Inspections
CALVIN TRAN
08/06/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
SIMON JIANG
08/05/2026
Inspection — Fail-Final General Construction Non-Directive 14
Fail
View inspection ↗
07/28/2026
Filed — Alteration
EXISTING ONE-FAMILY HOUSE WITH PLUMBING WORK AT CELLAR, BASEMENT, 1 ST & 2ND FLOOR. JOB FILED TO RELATED TO ALT2 APPLICATION # B01284825-I1.2. NO CHANGE IN USE, MEANS OF EGRESS OR OCCUPANCY
B01284825-P5
07/28/2026
Special inspection requirement — Air barrier - visual inspection
CALVIN TRAN
07/28/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
SIMON JIANG
07/28/2026
Special inspection requirement — Energy Code Compliance Inspections
CALVIN TRAN
07/28/2026
Special inspection requirement — Fire-Resistance Rated Construction
CALVIN TRAN
07/28/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
CALVIN TRAN
07/28/2026
Special inspection requirement — Interior lighting power
CALVIN TRAN
07/28/2026
Special inspection requirement — HVAC-R and service water heating system controls
CALVIN TRAN
07/28/2026
Special inspection requirement — Fenestration air leakage
CALVIN TRAN
07/28/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
CALVIN TRAN
07/28/2026
Special inspection requirement — Maintenance information
CALVIN TRAN
07/28/2026
Special inspection requirement — HVAC-R and service water heating equipment
CALVIN TRAN
07/28/2026
Special inspection requirement — Fenestration areas
CALVIN TRAN
07/28/2026
Special inspection requirement — Insulation placement and R values
CALVIN TRAN
07/28/2026
Special inspection requirement — Metering
CALVIN TRAN
07/23/2026
Inspection — Fail-Final General Construction Non-Directive 14
Fail
View inspection ↗
07/21/2026
Signed off — Alteration
EXISTING ONE-FAMILY HOUSE WITH PLUMBING WORK AT CELLAR, BASEMENT, 1 ST & 2ND FLOOR. JOB FILED TO RELATED TO ALT2 APPLICATION # B01284825-I1.2. NO CHANGE IN USE, MEANS OF EGRESS OR OCCUPANCY
B01284825-S1
07/14/2026
Inspection — Fail-Final General Construction Non-Directive 14
Fail
View inspection ↗
02/03/2026
Filed — Alteration
EXISTING ONE-FAMILY HOUSE WITH PLUMBING WORK AT CELLAR, BASEMENT, 1 ST & 2ND FLOOR. JOB FILED TO RELATED TO ALT2 APPLICATION # B01284825-I1.2. NO CHANGE IN USE, MEANS OF EGRESS OR OCCUPANCY
B01284825-P3
01/30/2026
Special inspection requirement — Maintenance information
CALVIN TRAN
01/30/2026
Special inspection requirement — HVAC-R and service water heating system controls
CALVIN TRAN
01/12/2026
Inspection — Certified Gas-Gas-Piping-Roughing
Certified
View inspection ↗
01/12/2026
Inspection — Certified Storm Drainage-ST-Piping-Roughing
Certified
View inspection ↗
01/12/2026
Inspection — Certified Storm Drainage-ST-Piping-Underground
Certified
View inspection ↗
01/07/2026
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
10/08/2025
Filed — Alteration
EXISTING ONE-FAMILY HOUSE WITH PLUMBING WORK AT CELLAR, BASEMENT, 1 ST & 2ND FLOOR. JOB FILED TO RELATED TO ALT2 APPLICATION # B01284825-I1.2. NO CHANGE IN USE, MEANS OF EGRESS OR OCCUPANCY
B01284825-P1
10/08/2025
Filed — Alteration
EXISTING ONE-FAMILY HOUSE WITH PLUMBING WORK AT CELLAR, BASEMENT, 1 ST & 2ND FLOOR. JOB FILED TO RELATED TO ALT2 APPLICATION # B01284825-I1.2. NO CHANGE IN USE, MEANS OF EGRESS OR OCCUPANCY
B01284825-P2
09/23/2025
Permit issued — Plumbing
B01284825-S1-PL
09/19/2025
Permit issued — General Construction
B01284825-I1-GC
09/17/2025
Filed — Alteration
EXISTING ONE-FAMILY HOUSE WITH PLUMBING WORK AT CELLAR, BASEMENT, 1 ST & 2ND FLOOR. JOB FILED TO RELATED TO ALT2 APPLICATION # B01284825-I1.2. NO CHANGE IN USE, MEANS OF EGRESS OR OCCUPANCY
B01284825-I1
09/17/2025
Filed — Alteration
EXISTING ONE-FAMILY HOUSE WITH PLUMBING WORK AT CELLAR, BASEMENT, 1 ST & 2ND FLOOR. JOB FILED TO RELATED TO ALT2 APPLICATION # B01284825-I1.2. NO CHANGE IN USE, MEANS OF EGRESS OR OCCUPANCY
B01284825-S1
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
MTEK1409/13/2026
MTEK GOLD LLC103/21/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
10/06/2025$1.4M—— → —$595/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
CQ&J CORPORATION708/06/2026
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
WM ARCH1003/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
PRIMROSE SERVICE INCGeneral Contractor104/09/2026
M & M PIPING AND HEATINGPlumbing106/28/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
SIMON7555408/06/2026
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingSigned-offM & M PIPING AND HEATING09/23/2025
DOB NOWGeneral ConstructionSigned-offPRIMROSE SERVICE INC09/19/2025
▾Field Inspections (DOB CAP) — 8
DateTypeResultReport
08/18/2026Pass-Final General Construction Non-Directive 14PassView ↗
08/05/2026Fail-Final General Construction Non-Directive 14FailView ↗
07/23/2026Fail-Final General Construction Non-Directive 14FailView ↗
07/14/2026Fail-Final General Construction Non-Directive 14FailView ↗
01/12/2026Certified Gas-Gas-Piping-RoughingCertifiedView ↗
01/12/2026Certified Storm Drainage-ST-Piping-RoughingCertifiedView ↗
01/12/2026Certified Storm Drainage-ST-Piping-UndergroundCertifiedView ↗
01/07/2026Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 52
DateRequirementInspectorRole
08/06/2026Fenestration and door U-factor and product ratingsCALVIN TRANenergy_progress
08/06/2026Maintenance informationCALVIN TRANenergy_progress
08/06/2026HVAC-R and service water heating system controlsCALVIN TRANenergy_progress
08/06/2026Insulation placement and R valuesCALVIN TRANenergy_progress
08/06/2026Interior lighting powerCALVIN TRANenergy_progress
08/06/2026Air barrier - visual inspectionCALVIN TRANenergy_progress
08/06/2026HVAC-R and service water heating equipmentCALVIN TRANenergy_progress
08/06/2026Fenestration areasCALVIN TRANenergy_progress
08/06/2026Fenestration air leakageCALVIN TRANenergy_progress
08/06/2026MeteringCALVIN TRANenergy_progress
08/06/2026HVAC-R and service water piping design and insulationCALVIN TRANenergy_progress
08/06/2026Fire-Resistance Rated ConstructionCALVIN TRANprogress
08/06/2026Energy Code Compliance InspectionsCALVIN TRANprogress
08/06/2026Fire-Resistant Penetrations and JointsSIMON JIANGspecial
07/28/2026Air barrier - visual inspectionCALVIN TRANenergy_progress
07/28/2026Fire-Resistant Penetrations and JointsSIMON JIANGspecial
07/28/2026Energy Code Compliance InspectionsCALVIN TRANprogress
07/28/2026Fire-Resistance Rated ConstructionCALVIN TRANprogress
07/28/2026Fenestration and door U-factor and product ratingsCALVIN TRANenergy_progress
07/28/2026Interior lighting powerCALVIN TRANenergy_progress
07/28/2026HVAC-R and service water heating system controlsCALVIN TRANenergy_progress
07/28/2026Fenestration air leakageCALVIN TRANenergy_progress
07/28/2026HVAC-R and service water piping design and insulationCALVIN TRANenergy_progress
07/28/2026Maintenance informationCALVIN TRANenergy_progress
07/28/2026HVAC-R and service water heating equipmentCALVIN TRANenergy_progress
Latest 25 of 52.
▾Documents — 37 on file (BIS + DOB NOW)
▸Plans & Drawings7
▸DOB NOWPlans/Sketch7
08/18/2026B01284825-S1Request digital key ↗
08/18/2026B01284825-P6Request digital key ↗
08/18/2026B01284825-P1Request digital key ↗
Showing 3 of 7 on file for this type
▸Seals & Professional Certifications23
▸DOB NOWProgress Inspector Seal & Signature13
09/02/2026B01284825-P2Open ↗
09/02/2026B01284825-P2Open ↗
09/01/2026B01284825-P6Open ↗
Showing 3 of 13 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature7
08/18/2026B01284825-S1Open ↗
08/18/2026B01284825-P6Open ↗
08/18/2026B01284825-I1Open ↗
Showing 3 of 7 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature3
09/01/2026B01284825-P6Open ↗
08/28/2026B01284825-P5Open ↗
08/23/2026B01284825-P1Open ↗
▸Environmental & Asbestos7
▸DOB NOWDEP ACP-5: Asbestos Assessment Report7
08/18/2026B01284825-S1Open ↗
08/18/2026B01284825-I1Open ↗
08/18/2026B01284825-P1Open ↗
Showing 3 of 7 on file for this type