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Two family brick
942 51 STREET
BROOKLYN · BIN 3138211
💬 Discuss this project
1920Year Built
2Stories
B1Building Class
R6Zoning
2,600 sfGross Floor Area
2Units
Rent Stabilized2 Open Violations ▸FDNY Report ↗
Two family brick · Owner of record: 942 51 LLC · 2,437 sf lot · 1.07 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralMechanicalPlumbing
Floor 232p · 2 filings · 20 docs
Floor 132p · 2 filings · 20 docs
Cellar32p · 2 filings · 20 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
CKL ENGINEERING308/20/2026
CHUN ENGINEERING CONSULTANT PLLC1404/15/2025
CKL ENGINEERING, P.C.102/13/2023
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
CAVALRY LLC2203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
CAVALRY LLCGeneral Contractor1007/08/2026
ALL PRO PLBG & HTG INCFire Protection107/08/2026
ALL PRO PLBG & HTG INCPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
DAL H CHUN ENGINEER PC1972607/14/2026
M. INT'L ENGINEERING PLLC31291009/17/2024
Building Lifecycle
All (136)Filed (18)Permit Issued (9)Signed Off (5)Violation (37)Inspection (14)Objection (23)Special Inspection (30)
08/20/2026
Filed — Alteration CO
PL and SP filed in conjunction with Alt I B00871216
B00871216-S9
08/06/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
08/06/2026
Special inspection requirement — Energy Code Compliance Inspections
JAMES CHUN
08/06/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
07/14/2026
Filed — Alteration
INTERIOR RENOVATION DEMOLITION IN CONJUNCTION WITH ALT 1 #B00871216-I1. NO CHANGE OF USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.
B00821475-P4
06/11/2026
Special inspection requirement — Final
JAMES CHUN
06/11/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
JAMES CHUN
06/11/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
JAMES CHUN
06/11/2026
Special inspection requirement — Energy Code Compliance Inspections
JAMES CHUN
06/11/2026
Special inspection requirement — Fire-Resistance Rated Construction
JAMES CHUN
03/24/2026
Filed — Alteration
INTERIOR RENOVATION DEMOLITION IN CONJUNCTION WITH ALT 1 #B00871216-I1. NO CHANGE OF USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.
B00821475-P3
03/24/2026
Special inspection requirement — Energy Code Compliance Inspections
JAMES CHUN
03/24/2026
Special inspection requirement — Final
JAMES CHUN
03/24/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
JAMES CHUN
03/24/2026
Special inspection requirement — Fire-Resistance Rated Construction
JAMES CHUN
03/24/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
JAMES CHUN
05/29/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
JAMES CHUN
05/29/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
JAMES CHUN
05/29/2025
Special inspection requirement — Energy Code Compliance Inspections
JAMES CHUN
05/29/2025
Special inspection requirement — Final
JAMES CHUN
05/29/2025
Special inspection requirement — Fire-Resistance Rated Construction
JAMES CHUN
05/08/2025
Objection raised — Cost
05/01/2025
Objection resolved — Addressed
04/24/2025
Objection raised — Scope
04/15/2025
Filed — Alteration CO
PL and SP filed in conjunction with Alt I B00871216
B00871216-P8
04/01/2025
Special inspection requirement — Subgrade Inspections
03/10/2025
Special inspection requirement — Fenestration and door U-factor and product ratings
JAMES CHUN
03/10/2025
Special inspection requirement — Insulation placement and R values
JAMES CHUN
03/10/2025
Special inspection requirement — Fenestration air leakage
JAMES CHUN
03/10/2025
Special inspection requirement — Fire-Resistance Rated Construction
JAMES CHUN
03/10/2025
Special inspection requirement — Energy Code Compliance Inspections
JAMES CHUN
03/10/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
JAMES CHUN
03/10/2025
Special inspection requirement — Fenestration areas
JAMES CHUN
03/10/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
JAMES CHUN
02/18/2025
Signed off — Alteration CO
PL and SP filed in conjunction with Alt I B00871216
B00871216-S8
01/24/2025
Signed off — Alteration CO
PL and SP filed in conjunction with Alt I B00871216
B00871216-S5
12/04/2024
Violation issued (HPD, closed)
I
10/16/2024
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
10/07/2024
Special inspection requirement — Seismic Isolation Systems
JAMES CHUN
10/07/2024
Special inspection requirement — Sprinkler Systems
JAMES CHUN
10/07/2024
Special inspection requirement — Energy Code Compliance Inspections
JAMES CHUN
09/30/2024
Objection resolved — Addressed
09/25/2024
Objection raised — Scope
09/25/2024
Objection resolved — Addressed
09/17/2024
Filed — Alteration CO
PL and SP filed in conjunction with Alt I B00871216
B00871216-P7
08/22/2024
Signed off — Alteration
INTERIOR RENOVATION DEMOLITION IN CONJUNCTION WITH ALT 1 #B00871216-I1. NO CHANGE OF USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.
B00821475-I1
08/20/2024
Signed off — Alteration CO
PL and SP filed in conjunction with Alt I B00871216
B00871216-S6
08/06/2024
Objection resolved — Addressed
08/06/2024
Objection resolved — Addressed
08/02/2024
Objection raised — Scope
08/02/2024
Objection raised — Energy
07/24/2024
Signed off — Alteration CO
PL and SP filed in conjunction with Alt I B00871216
B00871216-S7
07/08/2024
Objection raised — Scope
06/28/2024
Permit issued — Structural
B00871216-S8-GC
06/27/2024
Filed — Alteration CO
PL and SP filed in conjunction with Alt I B00871216
B00871216-P6
06/27/2024
Inspection — Certified Sprinkler-SP-Fixtures-Finish
Certified
View inspection ↗
06/25/2024
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
06/19/2024
Inspection — Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test
Certified
View inspection ↗
06/17/2024
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
06/04/2024
Objection resolved — Addressed
Latest 60 of 136 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWStructuralSigned-offCAVALRY LLC06/28/2024
DOB NOWPlumbingSigned-offALL PRO PLBG & HTG INC10/30/2023
DOB NOWPlumbingSigned-offALL PRO PLBG & HTG INC10/30/2023
DOB NOWFoundationSigned-offCAVALRY LLC07/17/2023
DOB NOWStructuralSigned-offCAVALRY LLC07/17/2023
DOB NOWMechanical SystemsSigned-offCAVALRY LLC07/13/2023
DOB NOWConstruction FenceSigned-offCAVALRY LLC06/14/2023
DOB NOWGeneral ConstructionPermit IssuedCAVALRY LLC06/13/2023
DOB NOWGeneral ConstructionPermit IssuedCAVALRY LLC02/22/2023
1 project · most recent 08/20/2026
Sprinkler System
FiledStatusContractorScope
08/20/2026Signed-offALL PRO PLBG & HTG INCSprinkler System
1 project · most recent 08/20/2026
Gas Water/Sanitary
FiledStatusContractorScope
08/20/2026Signed-offALL PRO PLBG & HTG INCGas, Water/Sanitary
1 project · most recent 07/09/2024
General Wiring
FiledStatusContractorScope
07/09/2024CompleteJOSEPH WEINSTEIN ELECTRICGeneral Wiring
1 project · most recent 08/20/2026
Steel Concrete
FiledStatusContractorScope
08/20/2026Signed-offCAVALRY LLCSteel, Concrete
1 project · most recent 08/20/2026
Fence
FiledStatusContractorScope
08/20/2026Signed-offCAVALRY LLCFence
▾Field Inspections (DOB CAP) — 14
DateTypeResultReport
10/16/2024Pass-Final CND-Occupancy InspectionPassView ↗
06/27/2024Certified Sprinkler-SP-Fixtures-FinishCertifiedView ↗
06/25/2024Pass-Final CND-Occupancy InspectionPassView ↗
06/19/2024Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic TestCertifiedView ↗
06/17/2024Pass-Final PL - Up to 3 Requested FloorsPassView ↗
05/10/2024Pass-Final CND-Occupancy InspectionPassView ↗
03/28/2024Fail-Final PL - Up to 3 Requested FloorsFailView ↗
01/16/2024Certified Gas-Gas-Piping-RoughingCertifiedView ↗
01/16/2024Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
01/16/2024Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
06/27/2023Fail-Final PL - Up to 3 Requested FloorsFailView ↗
03/23/2023Pass-Final PL - Up to 3 Requested FloorsPassView ↗
03/01/2023Fail-Final PL - Up to 3 Requested FloorsFailView ↗
12/01/2022Pass-Final PL - Up to 3 Requested FloorsPassView ↗
▾Special Inspection Requirements (DOB NOW) — 108
DateRequirementInspectorRole
08/06/2026Structural Stability – Alterations of existing buildings—special
08/06/2026Energy Code Compliance InspectionsJAMES CHUNprogress
08/06/2026Fire-Resistant Penetrations and Joints—special
06/11/2026Fire-Resistance Rated ConstructionJAMES CHUNprogress
06/11/2026Energy Code Compliance InspectionsJAMES CHUNprogress
06/11/2026FinalJAMES CHUNprogress
06/11/2026Structural Stability – Alterations of existing buildingsJAMES CHUNspecial
06/11/2026Fire-Resistant Penetrations and JointsJAMES CHUNspecial
03/24/2026FinalJAMES CHUNprogress
03/24/2026Structural Stability – Alterations of existing buildingsJAMES CHUNspecial
03/24/2026Fire-Resistant Penetrations and JointsJAMES CHUNspecial
03/24/2026Fire-Resistance Rated ConstructionJAMES CHUNprogress
03/24/2026Energy Code Compliance InspectionsJAMES CHUNprogress
05/29/2025Structural Stability – Alterations of existing buildingsJAMES CHUNspecial
05/29/2025Fire-Resistance Rated ConstructionJAMES CHUNprogress
05/29/2025FinalJAMES CHUNprogress
05/29/2025Energy Code Compliance InspectionsJAMES CHUNprogress
05/29/2025Fire-Resistant Penetrations and JointsJAMES CHUNspecial
04/01/2025Subgrade Inspections—special
03/10/2025Structural Stability – Alterations of existing buildingsJAMES CHUNspecial
03/10/2025Fire-Resistant Penetrations and JointsJAMES CHUNspecial
03/10/2025Energy Code Compliance InspectionsJAMES CHUNprogress
03/10/2025Fire-Resistance Rated ConstructionJAMES CHUNprogress
03/10/2025Fenestration air leakageJAMES CHUNenergy_progress
03/10/2025Fenestration areasJAMES CHUNenergy_progress
Latest 25 of 108.
▾Documents — 117 on file (BIS + DOB NOW)
▸Plans & Drawings18
▸DOB NOWPlans/Sketch18
08/27/2026B00821475-P3Request digital key ↗
08/27/2026B00821475-P4Request digital key ↗
08/27/2026B00821475-I1Request digital key ↗
Showing 3 of 18 on file for this type
▸Zoning, Tax Lot & Property Records6
▸DOB NOWZoning Exhibit form (1-5)5
08/13/2026B00871216-P5Open ↗
08/13/2026B00871216-P1Open ↗
08/13/2026B00871216-P7Open ↗
Showing 3 of 5 on file for this type
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026B00871216-I1Open ↗
▸Seals & Professional Certifications63
▸DOB NOWProgress Inspector Seal & Signature30
09/01/2026B00871216-P2Open ↗
09/01/2026B00871216-P2Open ↗
08/29/2026B00871216-P3Open ↗
Showing 3 of 30 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature19
08/27/2026B00821475-I1Open ↗
08/27/2026B00821475-P4Open ↗
08/25/2026B00871216-P8Open ↗
Showing 3 of 19 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature14
09/01/2026B00871216-P2Open ↗
08/29/2026B00871216-P3Open ↗
08/28/2026B00871216-S5Open ↗
Showing 3 of 14 on file for this type
▸Safety & Tenant Protection5
▸DOB NOWStreet Tree Checklist5
08/25/2026B00871216-P7Open ↗
08/25/2026B00871216-P1Open ↗
08/15/2026B00871216-P5Open ↗
Showing 3 of 5 on file for this type
▸Environmental & Asbestos19
▸DOB NOWDEP ACP-5: Asbestos Assessment Report19
08/27/2026B00821475-P4Open ↗
08/25/2026B00871216-S6Open ↗
08/25/2026B00871216-S9Open ↗
Showing 3 of 19 on file for this type
▸Other Documents6
▸DOB NOWProperty Ownership Certification5
08/25/2026B00871216-P7Open ↗
08/25/2026B00871216-P1Open ↗
08/15/2026B00871216-P5Open ↗
Showing 3 of 5 on file for this type
▸DOB NOWFinal Survey1
08/13/2026B00871216-I1Open ↗