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Two stories - detached, small or mid-size
146-42 HAWTHORN AVENUE
QUEENS · East Flushing · BIN 4117584
💬 Discuss this project
1920Year Built
2.75Stories
A1Building Class
R3XZoning
2,076 sfGross Floor Area
1Units
0 Open Violations
Two stories - detached, small or mid-size · 4,000 sf lot · 0.52 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralPlumbingFire Protection
Floor 210p · 4 filings · 20 docs
Floor 111p · 4 filings · 20 docs
Cellar11p · 4 filings · 20 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
BAYSIDE ENGINEERING PC1709/30/2025
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
LXC CONSTRUCTION INCGeneral Contractor1407/08/2026
AMM GEN'L CONTRACTING.INCFire Protection207/08/2026
AMM GEN'L CONTRACTING INCPlumbing207/08/2026
DYNAMIC PLBG & SPRKLR CORPlumbing207/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
SD TESTING & INSPECTION S70101309/30/2025
Building Lifecycle
All (120)Filed (16)Permit Issued (12)Signed Off (4)Inspection (20)Objection (38)Special Inspection (30)
04/24/2026
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
04/15/2026
Inspection — Pass-Final Curb Cut Non-Directive 14
Pass
View inspection ↗
03/06/2026
Inspection — Certified Sprinkler-SP-Fixtures-Finish
Certified
View inspection ↗
03/02/2026
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
03/02/2026
Inspection — Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test
Certified
View inspection ↗
01/26/2026
Permit issued — Curb Cut
Q01050902-S2-CC
12/22/2025
Permit issued — Sprinklers
Q01129163-I1-EW-SP
12/19/2025
Inspection — Pass-Final SP - Up to 3 Requested Floors
Pass
View inspection ↗
12/03/2025
Inspection — Pass-Final SP - Up to 3 Requested Floors
Pass
View inspection ↗
11/03/2025
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
10/28/2025
Special inspection requirement — Energy Code Compliance Inspections
XIUCHENG LI
10/28/2025
Special inspection requirement — Fire-Resistance Rated Construction
XIUCHENG LI
10/28/2025
Special inspection requirement — Fenestration areas
XIUCHENG LI
10/28/2025
Special inspection requirement — Permanent certificate
XIUCHENG LI
10/28/2025
Special inspection requirement — Fenestration and door U-factor and product ratings
XIUCHENG LI
10/28/2025
Special inspection requirement — Air barrier — testing
XIUCHENG LI
10/28/2025
Special inspection requirement — Electric vehicle service equipment requirements
XIUCHENG LI
10/28/2025
Special inspection requirement — Interior lighting power
XIUCHENG LI
10/28/2025
Special inspection requirement — Insulation placement and R values
XIUCHENG LI
10/28/2025
Special inspection requirement — Maintenance information
XIUCHENG LI
10/28/2025
Special inspection requirement — Air barrier - visual inspection
XIUCHENG LI
10/28/2025
Special inspection requirement — Fenestration air leakage
XIUCHENG LI
10/28/2025
Special inspection requirement — Metering
XIUCHENG LI
10/28/2025
Special inspection requirement — Exterior Insulation and Finish Systems (EIFS)
XIUCHENG LI
10/28/2025
Special inspection requirement — Masonry
XIUCHENG LI
10/28/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
XIUCHENG LI
10/28/2025
Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation
XIUCHENG LI
10/28/2025
Special inspection requirement — Subgrade Inspections
XIUCHENG LI
10/28/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
XIUCHENG LI
10/27/2025
Inspection — Fail-Final CND-Occupancy Inspection
Fail
View inspection ↗
10/16/2025
Objection resolved — Addressed
10/10/2025
Objection raised — Scope
10/09/2025
Special inspection requirement — Energy Code Compliance Inspections
XIUCHENG LI
10/09/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
XIUCHENG LI
10/09/2025
Special inspection requirement — Sprinkler Systems
XIUCHENG LI
09/30/2025
Filed — Alteration
Proposed mechanical system works in conjunction with DOB NOW job# Q00833207-I1. No change in use, egress and occupancy.
Q01053447-I1
09/30/2025
Filed — Alteration
PROPOSED SPRINKLER WORK IN CONJUCTUIN WITH DOB NOW JOB# Q00833207-I1. AS PER PLAN, NO CHANGE OF USE, OCCUPANCY OR EGRESS.
Q01129163-P1
09/30/2025
Filed — Alteration CO
PROPOSED VERTICAL AND HORIZONTAL ENLARGEMENT OF AN EXISTING 2-STORY SINGLE FAMILY TO 2-STORY TWO FAMILY BUILDING AS PER PLAN. OBTAIN NEW CERTIFICATE OF OCCUPANCY.
Q00833207-P2
09/26/2025
Special inspection requirement — Energy Code Compliance Inspections
09/26/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
09/23/2025
Filed — Alteration
PROPOSED NEW 10'-0" CONC. CURB CUT INCLUDE 1'-6" SPLAY ON BOTH SIDE.
Q01050902-S2
09/23/2025
Special inspection requirement — Fenestration and door U-factor and product ratings
XIUCHENG LI
09/23/2025
Special inspection requirement — Metering
XIUCHENG LI
09/23/2025
Special inspection requirement — Maintenance information
XIUCHENG LI
09/23/2025
Special inspection requirement — Fenestration areas
XIUCHENG LI
09/23/2025
Special inspection requirement — Fire-Resistance Rated Construction
XIUCHENG LI
09/23/2025
Special inspection requirement — Electric vehicle service equipment requirements
XIUCHENG LI
07/18/2025
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
07/02/2025
Permit issued — Plumbing
Q01053452-I1-PL
06/02/2025
Inspection — Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test
Certified
View inspection ↗
05/12/2025
Filed — Alteration
PROPOSED CONVERSION FROM EXISTING 1 FAMILY, 2 STORY TO 2 FAMILY, 2 STORY BRICK BUILDING WITH ATTIC AND CELLAR. "PLUMBING WORKS ONLY"
Q01053452-P1
04/10/2025
Filed — Alteration CO
PROPOSED VERTICAL AND HORIZONTAL ENLARGEMENT OF AN EXISTING 2-STORY SINGLE FAMILY TO 2-STORY TWO FAMILY BUILDING AS PER PLAN. OBTAIN NEW CERTIFICATE OF OCCUPANCY.
Q00833207-P1
01/10/2025
Inspection — Certified Gas-Gas-Piping-Roughing
Certified
View inspection ↗
01/10/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
01/10/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
12/06/2024
Permit issued — Sprinklers
Q01129163-I1-EW-SP
10/18/2024
Filed — Alteration
PROPOSED SPRINKLER WORK IN CONJUCTUIN WITH DOB NOW JOB# Q00833207-I1. AS PER PLAN, NO CHANGE OF USE, OCCUPANCY OR EGRESS.
Q01129163-I1
07/02/2024
Permit issued — Plumbing
Q01053452-I1-PL
06/17/2024
Permit issued — General Construction
Q00833207-I1-GC
06/13/2024
Permit issued — Structural
Q01050902-I1-GC-CX
Latest 60 of 120 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWCurb CutSigned-offLXC CONSTRUCTION INC01/26/2026
DOB NOWSprinklersSigned-offAMM GEN'L CONTRACTING.INC12/22/2025
DOB NOWPlumbingPermit IssuedAMM GEN'L CONTRACTING INC07/02/2025
DOB NOWSprinklersSigned-offAMM GEN'L CONTRACTING.INC12/06/2024
DOB NOWPlumbingPermit IssuedAMM GEN'L CONTRACTING INC07/02/2024
DOB NOWGeneral ConstructionPermit IssuedLXC CONSTRUCTION INC06/17/2024
DOB NOWStructuralPermit IssuedLXC CONSTRUCTION INC06/13/2024
DOB NOWConstruction FenceSigned-offLXC CONSTRUCTION INC06/06/2024
DOB NOWPlumbingSigned-offCITYWIDE PLBG HTG & SPKLS02/07/2024
DOB NOWGeneral ConstructionSigned-offLXC CONSTRUCTION INC02/06/2024
DOB NOWGeneral ConstructionSigned-offLXC CONSTRUCTION INC11/14/2023
DOB NOWPlumbingSigned-offCITYWIDE PLBG HTG & SPKLS11/14/2023
1 project · most recent 09/30/2025
Air Conditioning Systems
FiledStatusContractorScope
09/30/2025——Air Conditioning Systems
1 project · most recent 05/12/2025
Gas Water/Sanitary
FiledStatusContractorScope
05/12/2025Permit IssuedAMM GEN'L CONTRACTING INCGas, Water/Sanitary
1 project · most recent 10/28/2024
General Wiring
FiledStatusContractorScope
10/28/2024CompleteKJK ELECTRIC INCGeneral Wiring
1 project · most recent 05/13/2024
Fence
FiledStatusContractorScope
05/13/2024Signed-offLXC CONSTRUCTION INCFence
▾Field Inspections (DOB CAP) — 20
DateTypeResultReport
04/24/2026Pass-Final CND-Occupancy InspectionPassView ↗
04/15/2026Pass-Final Curb Cut Non-Directive 14PassView ↗
03/06/2026Certified Sprinkler-SP-Fixtures-FinishCertifiedView ↗
03/02/2026Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
03/02/2026Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic TestCertifiedView ↗
12/19/2025Pass-Final SP - Up to 3 Requested FloorsPassView ↗
12/03/2025Pass-Final SP - Up to 3 Requested FloorsPassView ↗
11/03/2025Pass-Final CND-Occupancy InspectionPassView ↗
10/27/2025Fail-Final CND-Occupancy InspectionFailView ↗
07/18/2025Pass-Final PL - Up to 3 Requested FloorsPassView ↗
06/02/2025Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic TestCertifiedView ↗
01/10/2025Certified Gas-Gas-Piping-RoughingCertifiedView ↗
01/10/2025Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
01/10/2025Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
03/20/2024Pass-Final General Construction Non-Directive 14PassView ↗
03/04/2024Fail-Final General Construction Non-Directive 14FailView ↗
02/22/2024Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
02/22/2024Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
12/26/2023Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
12/26/2023Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 101
DateRequirementInspectorRole
10/28/2025Maintenance informationXIUCHENG LIenergy_progress
10/28/2025Fenestration and door U-factor and product ratingsXIUCHENG LIenergy_progress
10/28/2025Air barrier — testing XIUCHENG LIenergy_progress
10/28/2025MeteringXIUCHENG LIenergy_progress
10/28/2025Air barrier - visual inspectionXIUCHENG LIenergy_progress
10/28/2025Fenestration areasXIUCHENG LIenergy_progress
10/28/2025Fenestration air leakageXIUCHENG LIenergy_progress
10/28/2025Electric vehicle service equipment requirementsXIUCHENG LIenergy_progress
10/28/2025Interior lighting powerXIUCHENG LIenergy_progress
10/28/2025Structural Stability – Alterations of existing buildingsXIUCHENG LIspecial
10/28/2025Fire-Resistance Rated ConstructionXIUCHENG LIprogress
10/28/2025Energy Code Compliance InspectionsXIUCHENG LIprogress
10/28/2025Permanent certificateXIUCHENG LIenergy_progress
10/28/2025Insulation placement and R valuesXIUCHENG LIenergy_progress
10/28/2025Private On-Site Storm Water Disposal Systems-, and Detention Facilities, InstallationXIUCHENG LIspecial
10/28/2025MasonryXIUCHENG LIspecial
10/28/2025Exterior Insulation and Finish Systems (EIFS)XIUCHENG LIspecial
10/28/2025Subgrade InspectionsXIUCHENG LIspecial
10/28/2025Fire-Resistant Penetrations and JointsXIUCHENG LIspecial
10/09/2025Energy Code Compliance InspectionsXIUCHENG LIprogress
10/09/2025Fire-Resistant Penetrations and JointsXIUCHENG LIspecial
10/09/2025Sprinkler SystemsXIUCHENG LIspecial
09/26/2025Fire-Resistant Penetrations and Joints—special
09/26/2025Energy Code Compliance Inspections—progress
09/23/2025Exterior Insulation and Finish Systems (EIFS)XIUCHENG LIspecial
Latest 25 of 101.
▾Documents — 157 on file (BIS + DOB NOW)
▸Plans & Drawings16
▸DOB NOWPlans/Sketch16
08/23/2026Q00957861-S1Request digital key ↗
08/23/2026Q00957861-I1Request digital key ↗
08/23/2026Q00957861-P1Request digital key ↗
Showing 3 of 16 on file for this type
▸Applications & Permits1
▸BISPLAN / WORK APPROVAL APPLICATION1
11/10/2025440823682Open ↗
▸Zoning, Tax Lot & Property Records6
▸DOB NOWZD1: DOB Zoning Diagram3
08/18/2026Q00833207-P1Open ↗
08/18/2026Q00833207-P2Open ↗
08/15/2026Q00833207-I1Open ↗
▸DOB NOWZoning Exhibit form (1-5)2
08/18/2026Q00833207-P1Open ↗
08/18/2026Q00833207-P2Open ↗
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/15/2026Q00833207-I1Open ↗
▸Seals & Professional Certifications97
▸DOB NOWProgress Inspector Seal & Signature46
09/30/2026Q01053452-P1Open ↗
09/02/2026Q00833207-P1Open ↗
09/02/2026Q00833207-P1Open ↗
Showing 3 of 46 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature33
09/30/2026Q01053452-P1Open ↗
09/20/2026Q00999142-S1Open ↗
09/02/2026Q00833207-P1Open ↗
Showing 3 of 33 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature16
08/23/2026Q00957861-I1Open ↗
08/23/2026Q00957861-P1Open ↗
08/23/2026Q00957861-S1Open ↗
Showing 3 of 16 on file for this type
▸BISAPPLICANT OWNER SIGNATURE1
11/10/2025440823682Open ↗
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY1
11/10/2025440823682Open ↗
▸Safety & Tenant Protection5
▸DOB NOWStreet Tree Checklist2
08/18/2026Q00833207-P1Open ↗
08/18/2026Q00833207-P2Open ↗
▸BISSTREET TREES SITE PLAN1
11/10/2025440823682Open ↗
▸BISSTREET TREE CHECKLIST1
11/10/2025440823682Open ↗
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan1
08/15/2026Q00833207-I1Open ↗
▸Environmental & Asbestos14
▸DOB NOWDEP ACP-5: Asbestos Assessment Report14
08/23/2026Q00957861-I1Open ↗
08/23/2026Q00957861-P1Open ↗
08/23/2026Q00957861-S1Open ↗
Showing 3 of 14 on file for this type
▸Approvals, Objections & Sign-offs1
▸BISBPP - Forwarding Letter to DEP1
11/10/2025440823682Open ↗
▸Filing & Intake Forms3
▸BISADDITIONAL INFORMATION2
11/10/2025440823682Open ↗
11/10/2025440823682Open ↗
▸BISEFILING JOB APPLICATION COVER SHEET1
11/10/2025440823682Open ↗
▸Other Documents14
▸BISBPP - SUPPORTING DOCUMENTATION3
11/10/2025440823682Open ↗
11/10/2025440823682Open ↗
11/10/2025440823682Open ↗
▸DOB NOWSite Survey: Initial2
08/18/2026Q00833207-P1Open ↗
08/18/2026Q00833207-P2Open ↗
▸DOB NOWProperty Ownership Certification2
08/18/2026Q00833207-P1Open ↗
08/18/2026Q00833207-P2Open ↗
▸DOB NOWPlot Diagram2
08/18/2026Q00833207-P1Open ↗
08/18/2026Q00833207-P2Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone2
08/18/2026Q00833207-P1Open ↗
08/18/2026Q00833207-P2Open ↗
▸BISRECORDS MGMT FEE PAYMENT RECEIPT1
11/10/2025440823682Open ↗
▸DOB NOWAdjoining Owners Notification1
08/13/2026Q01050902-I1Open ↗
▸DOB NOWFinal Survey1
08/15/2026Q00833207-I1Open ↗