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One story - permanent living quarter
173-50 FAIRCHILD AVENUE
QUEENS · BIN 4126225
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1940Year Built
1Stories
A2Building Class
R2AZoning
836 sfGross Floor Area
1Units
FDNY Report ↗
One story - permanent living quarter · 4,000 sf lot · 0.21 FAR built · Flood zone X
Locations of Work
ArchitecturePlumbing
Permit Issued — active, not yet Signed-off
Floor 2Under Construction6p · 1 filing · 20 docs
Floor 1Under Construction6p · 1 filing · 20 docs
CellarUnder Construction8p · 1 filing · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
10/23/2025$850K—Private party → WL88 MANAGEMENT LLC$1,017/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
FIRST HEC DESIGN INC.306/09/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
GX CONSTRUCTION MGMT INCGeneral Contractor207/01/2026
TRI STATE PLBG & HTG INCPlumbing107/15/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
Z & T ENGINEERING, P.C.591111/21/2025
Building Lifecycle
All (32)Filed (3)Permit Issued (3)Inspection (5)Objection (6)Special Inspection (15)
08/07/2026
Inspection — Certified Gas-Gas-Piping-Roughing
Certified
View inspection ↗
08/03/2026
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
08/03/2026
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
07/14/2026
Permit issued — Plumbing
Q01312724-S2-PL
06/11/2026
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
06/09/2026
Filed — Alteration CO
VERTICAL EXTENSION OF SECOND FLOOR FOR EXISTING ONE STORY DETACHED HOUSE.CHANGE OF C.O.
Q01312724-S2
06/08/2026
Special inspection requirement — HVAC-R and service water heating equipment
Fei Zeng
06/08/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Fei Zeng
06/08/2026
Special inspection requirement — HVAC-R and service water heating system controls
Fei Zeng
06/05/2026
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
05/27/2026
Permit issued — General Construction
Q01312724-I1-GC
04/28/2026
Permit issued — Construction Fence
Q01312724-S1-FN
04/02/2026
Objection resolved — Addressed
04/02/2026
Objection resolved — Addressed
03/17/2026
Filed — Alteration CO
VERTICAL EXTENSION OF SECOND FLOOR FOR EXISTING ONE STORY DETACHED HOUSE.CHANGE OF C.O.
Q01312724-S1
01/16/2026
Special inspection requirement — Permanent certificate
Fei Zeng
01/16/2026
Special inspection requirement — Maintenance information
Fei Zeng
01/16/2026
Special inspection requirement — Metering
Fei Zeng
12/11/2025
Objection resolved — Addressed
12/03/2025
Objection raised — Zoning
12/01/2025
Objection raised — Cost
12/01/2025
Objection raised — Zoning
11/21/2025
Filed — Alteration CO
VERTICAL EXTENSION OF SECOND FLOOR FOR EXISTING ONE STORY DETACHED HOUSE.CHANGE OF C.O.
Q01312724-I1
11/19/2025
Special inspection requirement — Insulation placement and R values
Fei Zeng
11/19/2025
Special inspection requirement — Fenestration and door U-factor and product ratings
Fei Zeng
11/19/2025
Special inspection requirement — Air barrier - visual inspection
Fei Zeng
11/19/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Fei Zeng
11/19/2025
Special inspection requirement — Interior lighting power
Fei Zeng
11/19/2025
Special inspection requirement — Fenestration areas
Fei Zeng
11/19/2025
Special inspection requirement — Fenestration air leakage
Fei Zeng
11/19/2025
Special inspection requirement — Masonry
Fei Zeng
11/19/2025
Special inspection requirement — Energy Code Compliance Inspections
Fei Zeng
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingPermit IssuedTRI STATE PLBG & HTG INC07/14/2026
DOB NOWGeneral ConstructionPermit IssuedGX CONSTRUCTION MGMT INC05/27/2026
DOB NOWConstruction FencePermit IssuedGX CONSTRUCTION MGMT INC04/28/2026
2 projects · most recent 06/30/2026
General Wiring
FiledStatusContractorScope
06/30/2026Permit IssuedAL-LECTRIC ELECT'L CONTRGGeneral Wiring
01/15/2026Permit IssuedSCOTT ELEC'L SERVICE, LLCGeneral Wiring
1 project · most recent 06/09/2026
Fence
FiledStatusContractorScope
06/09/2026Permit IssuedTRI STATE PLBG & HTG INCFence
▾Field Inspections (DOB CAP) — 5
DateTypeResultReport
08/07/2026Certified Gas-Gas-Piping-RoughingCertifiedView ↗
08/03/2026Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
08/03/2026Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
06/11/2026Pass-Final CND-Occupancy InspectionPassView ↗
06/05/2026Pass-Final CND-Occupancy InspectionPassView ↗
▾Special Inspection Requirements (DOB NOW) — 15
DateRequirementInspectorRole
06/08/2026HVAC-R and service water heating equipmentFei Zengenergy_progress
06/08/2026HVAC-R and service water piping design and insulationFei Zengenergy_progress
06/08/2026HVAC-R and service water heating system controlsFei Zengenergy_progress
01/16/2026Permanent certificateFei Zengenergy_progress
01/16/2026Maintenance informationFei Zengenergy_progress
01/16/2026MeteringFei Zengenergy_progress
11/19/2025Insulation placement and R valuesFei Zengenergy_progress
11/19/2025Fenestration and door U-factor and product ratingsFei Zengenergy_progress
11/19/2025Air barrier - visual inspectionFei Zengenergy_progress
11/19/2025Fire-Resistant Penetrations and JointsFei Zengspecial
11/19/2025Interior lighting powerFei Zengenergy_progress
11/19/2025Fenestration areasFei Zengenergy_progress
11/19/2025Fenestration air leakageFei Zengenergy_progress
11/19/2025MasonryFei Zengspecial
11/19/2025Energy Code Compliance InspectionsFei Zengprogress
▾Documents — 23 on file (BIS + DOB NOW)
▸Plans & Drawings3
▸DOB NOWPlans/Sketch3
08/17/2026Q01312724-I1Request digital key ↗
08/17/2026Q01312724-S2Request digital key ↗
08/17/2026Q01312724-S1Request digital key ↗
▸Zoning, Tax Lot & Property Records2
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/17/2026Q01312724-I1Open ↗
▸DOB NOWZD1: DOB Zoning Diagram1
08/17/2026Q01312724-I1Open ↗
▸Seals & Professional Certifications8
▸DOB NOWProgress Inspector Seal & Signature3
09/05/2026Q01312724-S2Open ↗
08/26/2026Q01312724-I1Open ↗
08/26/2026Q01312724-I1Open ↗
▸DOB NOWDPL-1: Design Professional Seal & Signature3
08/17/2026Q01312724-I1Open ↗
08/17/2026Q01312724-S2Open ↗
08/17/2026Q01312724-S1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature2
08/26/2026Q01312724-I1Open ↗
08/26/2026Q01312724-I1Open ↗
▸Safety & Tenant Protection2
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan1
08/17/2026Q01312724-I1Open ↗
▸DOB NOWStreet Tree Checklist1
08/17/2026Q01312724-I1Open ↗
▸Environmental & Asbestos3
▸DOB NOWDEP ACP-5: Asbestos Assessment Report3
08/17/2026Q01312724-S2Open ↗
08/17/2026Q01312724-I1Open ↗
08/17/2026Q01312724-S1Open ↗
▸Other Documents5
▸DOB NOWProperty Ownership Certification1
08/17/2026Q01312724-I1Open ↗
▸DOB NOWSite Survey: Initial1
08/17/2026Q01312724-I1Open ↗
▸DOB NOWFinal Survey1
08/17/2026Q01312724-I1Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1
08/17/2026Q01312724-I1Open ↗
▸DOB NOWPlot Diagram1
08/17/2026Q01312724-I1Open ↗