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BuildNYC
One story - permanent living quarter
251-42 THORNHILL AVENUE
QUEENS · BIN 4625403
💬 Discuss this project
1950Year Built
1Stories
A2Building Class
R1-2Zoning
1,168 sfGross Floor Area
1Units
0 Active ViolationsFDNY Report ↗
One story - permanent living quarter · 5,919 sf lot · 0.2 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralElectricalMechanicalPlumbingFire ProtectionGeneral
Names shown beside floors are taken automatically from the text of filed documents and may be incomplete or wrong.
RoofSolar electric generating system installation18p · 2 filings · 20 docs
Attic13p · 1 filing · 20 docs
Floor 228p · 1 filing · 20 docs
Floor 133p · 1 filing · 20 docs
Cellar30p · 1 filing · 20 docs
Site & exterior11p · 2 filings · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
08/08/2024$990K—Private party → Private party$848/sf building
05/11/2022$988K—Private party → Private party$846/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
Alan Yang Architecture107/24/2026
Mei Architect206/25/2026
Mehdi Ghazi, P.E511/26/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
Mei Architect1203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
L&L Construction DevelopmentGeneral Contractor807/08/2026
L&L Construction DevelopmentScaffold404/09/2026
Leading Green Energy ConGeneral Contractor107/31/2026
Dynamic Plumbing & SprinklerFire Protection106/28/2026
Wasoff Plumbing & Utility CoPlumbing106/28/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
Alan Yang Architecture9490107/24/2026
Mehdi Ghazi, P.E7129506/25/2026
Triangle Inspection & Tes7495211/26/2025
Building Lifecycle
All (72)Filed (8)Permit Issued (11)Signed Off (4)Violation (4)Inspection (7)Objection (8)Special Inspection (30)
09/28/2026
Signed off — New Building
INSTALLATION OF CURB CURT AS PER THE PLAN FILED HEREWITH. NO CHANGE IN USE, OCCUPANCY OR EGRESS.
Q01159561-S2
09/16/2026
Signed off — New Building
INSTALLATION OF CURB CURT AS PER THE PLAN FILED HEREWITH. NO CHANGE IN USE, OCCUPANCY OR EGRESS.
Q01159561-S1
08/19/2026
Signed off — New Building
INSTALLATION OF CURB CURT AS PER THE PLAN FILED HEREWITH. NO CHANGE IN USE, OCCUPANCY OR EGRESS.
Q01159561-S3
08/18/2026
Signed off — Alteration
Q01108453-I1
08/05/2026
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
07/30/2026
Permit issued — Solar
Q01430043-I1-SL
07/24/2026
Filed — Alteration
solar panel installation
Q01430043-I1
07/22/2026
Special inspection requirement — Permanent certificate
MEHDI GHAZI
07/22/2026
Special inspection requirement — Ventilation and air distribution system
MEHDI GHAZI
07/22/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
MEHDI GHAZI
07/22/2026
Special inspection requirement — Subsurface Investigations (Borings/Test Pits)
Rajasekhar Sakhamuri
07/22/2026
Special inspection requirement — Protection of exposed foundation insulation
MEHDI GHAZI
07/22/2026
Special inspection requirement — HVAC-R and service water heating system controls
MEHDI GHAZI
07/22/2026
Special inspection requirement — Fire-Resistance Rated Construction
MEHDI GHAZI
07/22/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
MEHDI GHAZI
07/22/2026
Special inspection requirement — Air barrier — testing
MEHDI GHAZI
07/22/2026
Special inspection requirement — Air barrier - visual inspection
MEHDI GHAZI
07/22/2026
Special inspection requirement — Interior lighting power
MEHDI GHAZI
07/22/2026
Special inspection requirement — Electric vehicle service equipment requirements
MEHDI GHAZI
07/22/2026
Special inspection requirement — Fenestration areas
MEHDI GHAZI
07/22/2026
Special inspection requirement — Maintenance information
MEHDI GHAZI
07/22/2026
Special inspection requirement — Fenestration air leakage
MEHDI GHAZI
07/22/2026
Special inspection requirement — Duct leakage testing, insulation and design
MEHDI GHAZI
07/22/2026
Special inspection requirement — Metering
MEHDI GHAZI
07/22/2026
Special inspection requirement — Mechanical Systems
MEHDI GHAZI
07/22/2026
Special inspection requirement — Final
MEHDI GHAZI
07/22/2026
Special inspection requirement — Energy Code Compliance Inspections
MEHDI GHAZI
07/22/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
MEHDI GHAZI
07/22/2026
Special inspection requirement — HVAC-R and service water heating equipment
MEHDI GHAZI
07/22/2026
Special inspection requirement — Insulation placement and R values
MEHDI GHAZI
07/22/2026
Special inspection requirement — Heating Systems
MEHDI GHAZI
07/13/2026
Special inspection requirement — Final
Alan Yang
07/13/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alan Yang
07/13/2026
Special inspection requirement — Energy Code Compliance Inspections
Alan Yang
06/25/2026
Filed — New Building
INSTALLATION OF CURB CURT AS PER THE PLAN FILED HEREWITH. NO CHANGE IN USE, OCCUPANCY OR EGRESS.
Q01159561-P2
06/25/2026
Special inspection requirement — Permanent certificate
MEHDI GHAZI
06/25/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
MEHDI GHAZI
06/25/2026
Special inspection requirement — Subsurface Investigations (Borings/Test Pits)
Rajasekhar Sakhamuri
06/22/2026
Inspection — Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test
Certified
View inspection ↗
06/16/2026
Permit issued — Curb Cut
Q01159561-S3-CC
06/16/2026
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
05/07/2026
Inspection — Fail-Final PL - Up to 3 Requested Floors
Fail
View inspection ↗
03/19/2026
Violation issued (ECB, closed)
Construction
03/19/2026
Violation issued (ECB, closed)
Unknown
11/28/2025
Inspection — Certified Storm Drainage-ST-Piping-Underground
Certified
View inspection ↗
11/28/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
11/28/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
11/26/2025
Filed — New Building
INSTALLATION OF CURB CURT AS PER THE PLAN FILED HEREWITH. NO CHANGE IN USE, OCCUPANCY OR EGRESS.
Q01159561-P1
11/26/2025
Violation issued (ECB, closed)
Construction
11/26/2025
Violation issued (ECB, closed)
Unknown
11/20/2025
Permit issued — Construction Fence
Q01108453-I1-FN
07/17/2025
Permit issued — Plumbing
Q01159561-S2-EW-SP
07/16/2025
Permit issued — Plumbing
Q01159561-S2-PL
06/18/2025
Filed — New Building
INSTALLATION OF CURB CURT AS PER THE PLAN FILED HEREWITH. NO CHANGE IN USE, OCCUPANCY OR EGRESS.
Q01159561-S2
06/18/2025
Filed — New Building
INSTALLATION OF CURB CURT AS PER THE PLAN FILED HEREWITH. NO CHANGE IN USE, OCCUPANCY OR EGRESS.
Q01159561-S3
04/15/2025
Permit issued — Foundation
Q01159561-S1-ST
04/15/2025
Permit issued — Structural
Q01159561-S1-GC
04/15/2025
Permit issued — General Construction
Q01159561-S1-FO-EA
04/14/2025
Permit issued — General Construction
Q01159561-I1-MS
04/14/2025
Permit issued — Mechanical Systems
Q01159561-I1-GC
Latest 60 of 72 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSolarPermit IssuedLeading Green Energy Con07/30/2026
DOB NOWCurb CutSigned-offL&L Construction Development06/16/2026
DOB NOWConstruction FenceSigned-offL&L Construction Development11/20/2025
DOB NOWSprinklersSigned-offCitywide Plumbing, Heating & Sprinkler07/17/2025
DOB NOWPlumbingSigned-offWasoff Plumbing & Utility Co07/16/2025
DOB NOWFoundationSigned-offL&L Construction Development04/15/2025
DOB NOWStructuralSigned-offL&L Construction Development04/15/2025
DOB NOWGeneral ConstructionSigned-offL&L Construction Development04/15/2025
DOB NOWGeneral ConstructionSigned-offL&L Construction Development04/14/2025
DOB NOWMechanical SystemsPermit IssuedL&L Construction Development04/14/2025
DOB NOWConstruction FenceSigned-offL&L Construction Development10/22/2024
1 project · most recent 06/25/2026
Heating and Air Conditioning Systems
FiledStatusContractorScopeMake / Model / Capacity
06/25/2026Signed-offL&L Construction DevelopmentHeating and Air Conditioning Systems
Heat / Cool
Goodman GSZH506010 57,000 BTU · Heat Pump Outdoor ×8
1 project · most recent 06/25/2026
Sprinkler System
FiledStatusContractorScope
06/25/2026Signed-offDynamic Plumbing & SprinklerSprinkler System
1 project · most recent 06/25/2026
Storm Water/Sanitary
FiledStatusContractorScope
06/25/2026Signed-offWasoff Plumbing & Utility CoStorm, Water/Sanitary
2 projects · most recent 07/10/2026
General Wiring
FiledStatusContractorScope
07/10/2026Permit IssuedKwong Ming Electric—
07/28/2025CompleteKJK ElectricGeneral Wiring
1 project · most recent 06/25/2026
Steel Concrete Masonry Wood
FiledStatusContractorScope
06/25/2026Signed-offL&L Construction DevelopmentSteel, Concrete, Masonry, Wood
1 project · most recent 07/24/2026
FiledStatusContractorScope
07/24/2026Permit IssuedLeading Green Energy Con52 panels, 22.88 kw, 1,500 roof_area_sqft
1 project · most recent 06/25/2026
Earthwork
FiledStatusContractorScope
06/25/2026Signed-offL&L Construction DevelopmentEarthwork
▾Field Inspections (DOB CAP) — 7
DateTypeResultReport
08/05/2026Pass-Final CND-Occupancy InspectionPassView ↗
06/22/2026Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic TestCertifiedView ↗
06/16/2026Pass-Final PL - Up to 3 Requested FloorsPassView ↗
05/07/2026Fail-Final PL - Up to 3 Requested FloorsFailView ↗
11/28/2025Certified Storm Drainage-ST-Piping-UndergroundCertifiedView ↗
11/28/2025Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
11/28/2025Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 88
DateRequirementInspectorRole
07/22/2026Maintenance informationMEHDI GHAZIenergy_progress
07/22/2026HVAC-R and service water heating system controlsMEHDI GHAZIenergy_progress
07/22/2026Fenestration areasMEHDI GHAZIenergy_progress
07/22/2026Protection of exposed foundation insulationMEHDI GHAZIenergy_progress
07/22/2026Interior lighting powerMEHDI GHAZIenergy_progress
07/22/2026Electric vehicle service equipment requirementsMEHDI GHAZIenergy_progress
07/22/2026Permanent certificateMEHDI GHAZIenergy_progress
07/22/2026Ventilation and air distribution systemMEHDI GHAZIenergy_progress
07/22/2026Insulation placement and R valuesMEHDI GHAZIenergy_progress
07/22/2026Fenestration and door U-factor and product ratingsMEHDI GHAZIenergy_progress
07/22/2026Air barrier — testing MEHDI GHAZIenergy_progress
07/22/2026Air barrier - visual inspectionMEHDI GHAZIenergy_progress
07/22/2026HVAC-R and service water heating equipmentMEHDI GHAZIenergy_progress
07/22/2026HVAC-R and service water piping design and insulationMEHDI GHAZIenergy_progress
07/22/2026FinalMEHDI GHAZIprogress
07/22/2026Energy Code Compliance InspectionsMEHDI GHAZIprogress
07/22/2026Fire-Resistance Rated ConstructionMEHDI GHAZIprogress
07/22/2026Fire-Resistant Penetrations and JointsMEHDI GHAZIspecial
07/22/2026Mechanical SystemsMEHDI GHAZIspecial
07/22/2026MeteringMEHDI GHAZIenergy_progress
07/22/2026Fenestration air leakageMEHDI GHAZIenergy_progress
07/22/2026Duct leakage testing, insulation and designMEHDI GHAZIenergy_progress
07/22/2026Heating SystemsMEHDI GHAZIspecial
07/22/2026Subsurface Investigations (Borings/Test Pits)Rajasekhar Sakhamurispecial
07/13/2026Energy Code Compliance InspectionsAlan Yangprogress
Latest 25 of 88.
▾Documents — 70 on file (BIS + DOB NOW)
▸Plans & Drawings8
▸DOB NOWPlans/Sketch8
08/21/2026Q01108453-I1Request digital key ↗
08/18/2026Q01159561-P1Request digital key ↗
08/18/2026Q01159561-S3Request digital key ↗
Showing 3 of 8 on file for this type
▸Applications & Permits2
▸BISBPP-5 - Authorization to the Department of Transportation1
01/20/2026440826377Open ↗
▸BISPLAN / WORK APPROVAL APPLICATION1
01/20/2026440826377Open ↗
▸Zoning, Tax Lot & Property Records3
▸DOB NOWZD1: DOB Zoning Diagram2
08/18/2026Q01159561-P2Open ↗
08/13/2026Q01159561-I1Open ↗
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026Q01159561-I1Open ↗
▸Seals & Professional Certifications33
▸DOB NOWProgress Inspector Seal & Signature12
10/03/2026Q01430043-I1Open ↗
10/03/2026Q01430043-I1Open ↗
09/01/2026Q01159561-I1Open ↗
Showing 3 of 12 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature11
10/03/2026Q01430043-I1Open ↗
09/01/2026Q01159561-I1Open ↗
09/01/2026Q01159561-I1Open ↗
Showing 3 of 11 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature8
08/21/2026Q01108453-I1Open ↗
08/18/2026Q01159561-P2Open ↗
08/18/2026Q01159561-S2Open ↗
Showing 3 of 8 on file for this type
▸BISAPPLICANT OWNER SIGNATURE1
01/20/2026440826377Open ↗
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY1
01/20/2026440826377Open ↗
▸Trade Schedules & Equipment1
▸DOB NOWDEP: Sewer Certification (Sanitary/Storm)1
08/13/2026Q01159561-I1Open ↗
▸Safety & Tenant Protection7
▸DOB NOWStreet Tree Checklist3
08/18/2026Q01159561-P2Open ↗
08/13/2026Q01159561-I1Open ↗
08/13/2026Q01159561-S1Open ↗
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan2
08/13/2026Q01159561-S1Open ↗
08/13/2026Q01159561-I1Open ↗
▸BISSTREET TREES SITE PLAN1
01/20/2026440826377Open ↗
▸BISSTREET TREE CHECKLIST1
01/20/2026440826377Open ↗
▸Inspections & Test Reports5
▸DOB NOWSOIL REPORT3
08/18/2026Q01159561-P2Open ↗
08/13/2026Q01159561-S1Open ↗
08/13/2026Q01159561-I1Open ↗
▸DOB NOWTR4 Test Report and Plot Diagram2
08/13/2026Q01159561-S1Open ↗
08/13/2026Q01159561-I1Open ↗
▸Filing & Intake Forms1
▸BISEFILING JOB APPLICATION COVER SHEET1
01/20/2026440826377Open ↗
▸Other Documents10
▸DOB NOWSite Survey: Initial3
08/18/2026Q01159561-P2Open ↗
08/13/2026Q01159561-I1Open ↗
08/13/2026Q01159561-S1Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone3
08/18/2026Q01159561-P2Open ↗
08/13/2026Q01159561-S1Open ↗
08/13/2026Q01159561-I1Open ↗
▸DOB NOWProperty Ownership Certification2
08/18/2026Q01159561-P2Open ↗
08/13/2026Q01159561-I1Open ↗
▸BISCONSTRUCTION - SUPPORTING DOCUMENTATION1
01/20/2026440826377Open ↗
▸DOB NOWAdjoining Owners Notification1
08/13/2026Q01159561-S1Open ↗