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Primarily 2 family with 1 store or office
6421 20 AVENUE
BROOKLYN · BIN 3133619
💬 Discuss this project
1931Year Built
2Stories
S2Building Class
R5Zoning
2,200 sfGross Floor Area
3Units
0 Open ViolationsFDNY Report ↗
Primarily 2 family with 1 store or office · Owner of record: JIANG QUAN REALTY LLC · 1,800 sf lot · 1.22 FAR built · Flood zone X
Locations of Work
ArchitecturePlumbing
Permit Issued — active, not yet Signed-off
Floor 1Under Construction1p · 1 filing · 15 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
CONSTRCTN. MGNT. & SFTY. CON., INC.410/22/2025
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
JIA WEI CONSTRUCTION INCGeneral Contractor407/04/2026
CROSSFIELD PLBG.&HTGPlumbing106/28/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
CMSC, INC6098210/22/2025
Building Lifecycle
All (55)Filed (4)Permit Issued (5)Violation (7)Inspection (8)Objection (19)Special Inspection (12)
07/02/2026
Permit issued — General Construction
B01188800-I1-GC
06/30/2026
Permit issued — Construction Fence
B01188800-S2-FN
04/06/2026
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
01/15/2026
Inspection — Certified Gas-Gas-Piping-Roughing
Certified
View inspection ↗
01/15/2026
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
01/12/2026
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
12/22/2025
Inspection — Pass-Final PL - More than 10 Requested Floors
Pass
View inspection ↗
12/08/2025
Permit issued — Construction Fence
B01188800-S2-FN
11/13/2025
Permit issued — Plumbing
B01188800-S1-PL
11/12/2025
Objection resolved — Addressed
11/12/2025
Objection resolved — Addressed
11/10/2025
Objection raised — Other
11/10/2025
Objection raised — Other
10/23/2025
Permit issued — General Construction
B01188800-I1-GC
10/22/2025
Filed — Alteration
SUBSEQUENT FILING PLUMBING WORK UNDER DOB APPLICATION# B01188800-I1 FOR FIRST FLOOR RESTAURANT. NO CHANGE OF USE, EGRESS OR OCCUPANCY.
B01188800-S1
10/22/2025
Filed — Alteration
SUBSEQUENT FILING PLUMBING WORK UNDER DOB APPLICATION# B01188800-I1 FOR FIRST FLOOR RESTAURANT. NO CHANGE OF USE, EGRESS OR OCCUPANCY.
B01188800-S2
10/22/2025
Objection raised — Scope
10/22/2025
Objection raised — Structural
10/22/2025
Objection raised — Cost
10/22/2025
Objection resolved — Addressed
10/22/2025
Objection raised — Structural
10/22/2025
Objection raised — Structural
10/22/2025
Objection resolved — Resolved
10/16/2025
Filed — Alteration
SUBSEQUENT FILING PLUMBING WORK UNDER DOB APPLICATION# B01188800-I1 FOR FIRST FLOOR RESTAURANT. NO CHANGE OF USE, EGRESS OR OCCUPANCY.
B01188800-S3
10/16/2025
Objection resolved — Addressed
10/16/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
10/07/2025
Objection resolved — Addressed
10/07/2025
Objection resolved — Addressed
10/07/2025
Special inspection requirement — Sprinkler Systems
05/01/2025
Inspection — Pass-Final PL - Underground
Pass
View inspection ↗
03/18/2025
Objection raised — Fire_Protection
03/18/2025
Objection raised — Fire_Protection
03/18/2025
Objection raised — Fire_Protection
03/18/2025
Objection raised — Accessibility
03/18/2025
Objection resolved — Addressed
03/06/2025
Filed — Alteration
SUBSEQUENT FILING PLUMBING WORK UNDER DOB APPLICATION# B01188800-I1 FOR FIRST FLOOR RESTAURANT. NO CHANGE OF USE, EGRESS OR OCCUPANCY.
B01188800-I1
03/06/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
EDUARD GRINFELD
03/06/2025
Special inspection requirement — Tenant Protection Plan Compliance
EDUARD GRINFELD
03/03/2025
Special inspection requirement — Fire-Resistance Rated Construction
EDUARD GRINFELD
03/03/2025
Special inspection requirement — Interior lighting power
EDUARD GRINFELD
03/03/2025
Special inspection requirement — Fenestration air leakage
EDUARD GRINFELD
03/03/2025
Special inspection requirement — Air barrier - visual inspection
EDUARD GRINFELD
03/03/2025
Special inspection requirement — Fenestration and door U-factor and product ratings
EDUARD GRINFELD
03/03/2025
Special inspection requirement — Lighting controls
EDUARD GRINFELD
03/03/2025
Special inspection requirement — Energy Code Compliance Inspections
EDUARD GRINFELD
03/03/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
EDUARD GRINFELD
01/05/2025
Inspection — Pass-Final PL - Underground
Pass
View inspection ↗
12/09/2024
Inspection — Pass-Final PL - Underground
Pass
View inspection ↗
01/06/2006
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
01/31/2005
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
02/13/2004
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
03/19/2003
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
03/26/2002
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
09/16/1997
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
07/24/1991
Violation issued (ECB, closed)
Construction
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWGeneral ConstructionPermit IssuedJIA WEI CONSTRUCTION INC07/02/2026
DOB NOWConstruction FencePermit IssuedJIA WEI CONSTRUCTION INC06/30/2026
DOB NOWConstruction FencePermit IssuedJIA WEI CONSTRUCTION INC12/08/2025
DOB NOWPlumbingPermit IssuedCROSSFIELD PLBG.&HTG11/13/2025
DOB NOWGeneral ConstructionPermit IssuedJIA WEI CONSTRUCTION INC10/23/2025
BISOTISSUEDARCOBALENO CONST. OF BROOKLYN IN09/06/2002
1 project · most recent 10/22/2025
Sprinkler System
FiledStatusContractorScope
10/22/2025——Sprinkler System
1 project · most recent 10/22/2025
Gas Water/Sanitary
FiledStatusContractorScope
10/22/2025Permit IssuedCROSSFIELD PLBG.&HTGGas, Water/Sanitary
2 projects · most recent 05/18/2026
General Wiring
FiledStatusContractorScope
05/18/2026Permit IssuedJ Y ELECTRIC INC3 meters, 3 new_meters
03/27/2026Permit IssuedJ Y ELECTRIC INCGeneral Wiring
1 project · most recent 10/22/2025
Fence
FiledStatusContractorScope
10/22/2025Permit IssuedJIA WEI CONSTRUCTION INCFence
▾Field Inspections (DOB CAP) — 8
DateTypeResultReport
04/06/2026Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
01/15/2026Certified Gas-Gas-Piping-RoughingCertifiedView ↗
01/15/2026Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
01/12/2026Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
12/22/2025Pass-Final PL - More than 10 Requested FloorsPassView ↗
05/01/2025Pass-Final PL - UndergroundPassView ↗
01/05/2025Pass-Final PL - UndergroundPassView ↗
12/09/2024Pass-Final PL - UndergroundPassView ↗
▾Special Inspection Requirements (DOB NOW) — 12
DateRequirementInspectorRole
10/16/2025Fire-Resistant Penetrations and Joints—special
10/07/2025Sprinkler Systems—special
03/06/2025Fire-Resistant Penetrations and JointsEDUARD GRINFELDspecial
03/06/2025Tenant Protection Plan ComplianceEDUARD GRINFELDspecial
03/03/2025Fire-Resistance Rated ConstructionEDUARD GRINFELDprogress
03/03/2025Interior lighting powerEDUARD GRINFELDenergy_progress
03/03/2025Fenestration air leakageEDUARD GRINFELDenergy_progress
03/03/2025Air barrier - visual inspectionEDUARD GRINFELDenergy_progress
03/03/2025Fenestration and door U-factor and product ratingsEDUARD GRINFELDenergy_progress
03/03/2025Lighting controlsEDUARD GRINFELDenergy_progress
03/03/2025Energy Code Compliance InspectionsEDUARD GRINFELDprogress
03/03/2025Fire-Resistant Penetrations and JointsEDUARD GRINFELDspecial
▾Documents — 15 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch4
08/20/2026B01188800-S1Request digital key ↗
08/15/2026B01188800-S3Request digital key ↗
08/15/2026B01188800-S2Request digital key ↗
Showing 3 of 4 on file for this type
▸Seals & Professional Certifications8
▸DOB NOWDPL-1: Design Professional Seal & Signature4
08/20/2026B01188800-S3Open ↗
08/20/2026B01188800-S2Open ↗
08/20/2026B01188800-S1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWProgress Inspector Seal & Signature2
08/22/2026B01188800-I1Open ↗
08/22/2026B01188800-I1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature2
08/25/2026B01188800-S1Open ↗
08/22/2026B01188800-I1Open ↗
▸Environmental & Asbestos3
▸DOB NOWDEP ACP-5: Asbestos Assessment Report3
08/20/2026B01188800-S1Open ↗
08/15/2026B01188800-S3Open ↗
08/14/2026B01188800-I1Open ↗