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Two family brick
834 51 STREET
BROOKLYN · BIN 3138146
💬 Discuss this project
1920Year Built
2Stories
B1Building Class
R6Zoning
1,632 sfGross Floor Area
2Units
34 Open Violations ▸FDNY Report ↗
Two family brick · Owner of record: HUANG, 50% INTEREST, LI WEN · 2,000 sf lot · 0.82 FAR built · Flood zone X
Locations of Work
ArchitecturePlumbing
Floor 24p · 2 filings · 20 docs
Floor 1
Cellar4p · 2 filings · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
06/01/2021$1.1M—— → —$674/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
LU ENGINEERING SERVICE PC410/18/2021
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
H Z BUILDING NY803/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
CATMAN PLUMBING INCPlumbing1107/08/2026
H&Z BUILDING CONSULTING IGeneral Contractor307/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
LU ENGINEERING SERVICE PC6575410/18/2021
Building Lifecycle
All (69)Filed (4)Permit Issued (2)Signed Off (2)Violation (34)Inspection (4)Special Inspection (23)
11/03/2021
Signed off — Alteration
PROPOSED INTERIOR RENOVATION ON CELLAR, 1ST & 2ND FLOOR, REPAIRING PARTITIONS, FLOORING, CEILING. EXTERIOR WORK WITH INSTALL FRONT STAIRS TO CELLAR AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY. PLUMBING WORK FILE SEPARATE APPLICATION JOB#B00545160.
B00545154-I1
11/01/2021
Inspection — Pass-Final General Construction Non-Directive 14
Pass
View inspection ↗
10/25/2021
Inspection — Fail-Final General Construction Non-Directive 14
Fail
View inspection ↗
10/20/2021
Special inspection requirement — Structural Stability – Alterations of existing buildings
DONGSHENG LU
10/20/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
DONGSHENG LU
10/20/2021
Special inspection requirement — Energy Code Compliance Inspections
DONGSHENG LU
10/20/2021
Special inspection requirement — Fire-Resistance Rated Construction
DONGSHENG LU
10/20/2021
Special inspection requirement — Fenestration air leakage
DONGSHENG LU
10/20/2021
Special inspection requirement — Fenestration and door U-factor and product ratings
DONGSHENG LU
10/20/2021
Special inspection requirement — Fenestration areas
DONGSHENG LU
10/20/2021
Special inspection requirement — Air barrier - visual inspection
DONGSHENG LU
10/20/2021
Special inspection requirement — Interior lighting power
DONGSHENG LU
10/18/2021
Filed — Alteration
PROPOSED INTERIOR RENOVATION ON CELLAR, 1ST & 2ND FLOOR, REPAIRING PARTITIONS, FLOORING, CEILING. EXTERIOR WORK WITH INSTALL FRONT STAIRS TO CELLAR AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY. PLUMBING WORK FILE SEPARATE APPLICATION JOB#B00545160.
B00545154-P1
10/18/2021
Special inspection requirement — Interior lighting power
DONGSHENG LU
10/18/2021
Special inspection requirement — Fire-Resistance Rated Construction
DONGSHENG LU
10/18/2021
Special inspection requirement — Fenestration air leakage
DONGSHENG LU
10/18/2021
Special inspection requirement — Fenestration and door U-factor and product ratings
DONGSHENG LU
10/18/2021
Special inspection requirement — Air barrier - visual inspection
DONGSHENG LU
10/18/2021
Special inspection requirement — Fenestration areas
DONGSHENG LU
10/18/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
DONGSHENG LU
10/18/2021
Special inspection requirement — Structural Stability – Alterations of existing buildings
DONGSHENG LU
10/18/2021
Special inspection requirement — Energy Code Compliance Inspections
DONGSHENG LU
10/15/2021
Signed off — Alteration
FILING GAS AND PLUMBING WORK ON OSP, CELLAR, 1ST & 2ND FLOOR. NO CHANGE IN USE, EGRESS OR OCCUPANCY. GENERAL CONSTRUCTION IN CONJUNCTION JOB#B00545154.
B00545160-I1
09/27/2021
Filed — Alteration
FILING GAS AND PLUMBING WORK ON OSP, CELLAR, 1ST & 2ND FLOOR. NO CHANGE IN USE, EGRESS OR OCCUPANCY. GENERAL CONSTRUCTION IN CONJUNCTION JOB#B00545154.
B00545160-P1
09/27/2021
Special inspection requirement — Energy Code Compliance Inspections
DONGSHENG LU
09/27/2021
Special inspection requirement — HVAC-R and service water piping design and insulation
DONGSHENG LU
09/27/2021
Special inspection requirement — HVAC-R and service water heating equipment
DONGSHENG LU
09/27/2021
Special inspection requirement — HVAC-R and service water heating system controls
DONGSHENG LU
09/27/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
DONGSHENG LU
07/27/2021
Inspection — Certified Storm Drainage-ST-Piping-Underground
Certified
View inspection ↗
07/27/2021
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
07/22/2021
Permit issued — Plumbing
B00545160-I1-PL
06/24/2021
Permit issued — General Construction
B00545154-I1-GC
06/23/2021
Filed — Alteration
PROPOSED INTERIOR RENOVATION ON CELLAR, 1ST & 2ND FLOOR, REPAIRING PARTITIONS, FLOORING, CEILING. EXTERIOR WORK WITH INSTALL FRONT STAIRS TO CELLAR AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY. PLUMBING WORK FILE SEPARATE APPLICATION JOB#B00545160.
B00545154-I1
06/23/2021
Filed — Alteration
FILING GAS AND PLUMBING WORK ON OSP, CELLAR, 1ST & 2ND FLOOR. NO CHANGE IN USE, EGRESS OR OCCUPANCY. GENERAL CONSTRUCTION IN CONJUNCTION JOB#B00545154.
B00545160-I1
12/18/2007
Violation issued (HPD, open)
B
12/18/2007
Violation issued (HPD, open)
B
12/18/2007
Violation issued (HPD, open)
B
12/18/2007
Violation issued (HPD, open)
A
12/18/2007
Violation issued (HPD, open)
B
12/18/2007
Violation issued (HPD, open)
B
12/18/2007
Violation issued (HPD, open)
B
12/18/2007
Violation issued (HPD, open)
B
12/18/2007
Violation issued (HPD, open)
B
12/18/2007
Violation issued (HPD, open)
A
12/18/2007
Violation issued (HPD, open)
B
12/18/2007
Violation issued (HPD, open)
B
12/18/2007
Violation issued (HPD, open)
B
12/18/2007
Violation issued (HPD, open)
A
12/18/2007
Violation issued (HPD, open)
A
12/18/2007
Violation issued (HPD, open)
A
12/18/2007
Violation issued (HPD, open)
B
12/18/2007
Violation issued (HPD, open)
A
12/18/2007
Violation issued (HPD, open)
A
12/18/2007
Violation issued (HPD, open)
A
11/30/2007
Violation issued (HPD, open)
B
08/24/2007
Violation issued (HPD, open)
B
08/24/2007
Violation issued (HPD, open)
A
08/24/2007
Violation issued (HPD, open)
B
08/24/2007
Violation issued (HPD, open)
B
Latest 60 of 69 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingSigned-offCATMAN PLUMBING INC07/22/2021
DOB NOWGeneral ConstructionSigned-offH&Z BUILDING CONSULTING I06/24/2021
Nothing on file for this building.
▾Field Inspections (DOB CAP) — 4
DateTypeResultReport
11/01/2021Pass-Final General Construction Non-Directive 14PassView ↗
10/25/2021Fail-Final General Construction Non-Directive 14FailView ↗
07/27/2021Certified Storm Drainage-ST-Piping-UndergroundCertifiedView ↗
07/27/2021Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 23
DateRequirementInspectorRole
10/20/2021Structural Stability – Alterations of existing buildingsDONGSHENG LUspecial
10/20/2021Fire-Resistant Penetrations and JointsDONGSHENG LUspecial
10/20/2021Energy Code Compliance InspectionsDONGSHENG LUprogress
10/20/2021Fire-Resistance Rated ConstructionDONGSHENG LUprogress
10/20/2021Fenestration air leakageDONGSHENG LUenergy_progress
10/20/2021Fenestration and door U-factor and product ratingsDONGSHENG LUenergy_progress
10/20/2021Fenestration areasDONGSHENG LUenergy_progress
10/20/2021Air barrier - visual inspectionDONGSHENG LUenergy_progress
10/20/2021Interior lighting powerDONGSHENG LUenergy_progress
10/18/2021Interior lighting powerDONGSHENG LUenergy_progress
10/18/2021Fire-Resistance Rated ConstructionDONGSHENG LUprogress
10/18/2021Fenestration air leakageDONGSHENG LUenergy_progress
10/18/2021Fenestration and door U-factor and product ratingsDONGSHENG LUenergy_progress
10/18/2021Air barrier - visual inspectionDONGSHENG LUenergy_progress
10/18/2021Fenestration areasDONGSHENG LUenergy_progress
10/18/2021Fire-Resistant Penetrations and JointsDONGSHENG LUspecial
10/18/2021Structural Stability – Alterations of existing buildingsDONGSHENG LUspecial
10/18/2021Energy Code Compliance InspectionsDONGSHENG LUprogress
09/27/2021Energy Code Compliance InspectionsDONGSHENG LUprogress
09/27/2021HVAC-R and service water piping design and insulationDONGSHENG LUenergy_progress
09/27/2021HVAC-R and service water heating equipmentDONGSHENG LUenergy_progress
09/27/2021HVAC-R and service water heating system controlsDONGSHENG LUenergy_progress
09/27/2021Fire-Resistant Penetrations and JointsDONGSHENG LUspecial
▾Documents — 37 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch4
09/01/2026B00545160-P1Request digital key ↗
09/01/2026B00545160-I1Request digital key ↗
09/01/2026B00545154-I1Request digital key ↗
Showing 3 of 4 on file for this type
▸Seals & Professional Certifications27
▸DOB NOWProgress Inspector Seal & Signature18
08/29/2026B00545160-P1Open ↗
08/29/2026B00545160-P1Open ↗
08/29/2026B00545160-P1Open ↗
Showing 3 of 18 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature5
08/29/2026B00545160-P1Open ↗
08/25/2026B00545154-P1Open ↗
08/25/2026B00545154-P1Open ↗
Showing 3 of 5 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature4
09/01/2026B00545160-P1Open ↗
09/01/2026B00545160-I1Open ↗
09/01/2026B00545154-I1Open ↗
Showing 3 of 4 on file for this type
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
09/01/2026B00545160-P1Open ↗
09/01/2026B00545160-I1Open ↗
09/01/2026B00545154-P1Open ↗
Showing 3 of 4 on file for this type
▸Energy Compliance2
▸DOB NOWEN2: As Built Energy Analysis.2
08/13/2026B00545160-I1Open ↗
08/13/2026B00545154-I1Open ↗