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Two family frame
147-11 21ST AVENUE
QUEENS · BIN 4620938
💬 Discuss this project
2023Year Built
2Stories
B2Building Class
R3AZoning
2,234 sfGross Floor Area
2Units
Two family frame · 3,333 sf lot · 0.67 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralMechanicalFire ProtectionCivil
Floor 22p · 1 filing · 20 docs
Floor 12p · 1 filing · 20 docs
Cellar5p · 2 filings · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
WHITESTONE BUILDERS2807/08/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
09/12/2024$1.9M—— → —$861/sf building
10/28/2022$1.6M—Private party → WHITESTONE BUILDERS LLC— not available
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
CHUN FENG, ARCHITECT203/13/2025
BFS ARCHITECT PC905/14/2024
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
HIGH QUALITY 338403/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
MASTORAS BUILDERS LLCGeneral Contractor1107/08/2026
HIGH QUALITY CONSTRUCTIONGeneral Contractor203/21/2026
AMERICAN STANDARD P&H CORORP.Plumbing107/08/2026
INFINITI ESC PLUMBING CORPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
SQ. ARCH, LLC4802203/13/2025
BFS ARCHITECT PC7477705/14/2024
TRIANGLE INSPECTION & TES7495405/14/2024
Building Lifecycle
All (76)Filed (11)Permit Issued (8)Signed Off (5)Inspection (12)Objection (10)Special Inspection (30)
05/19/2025
Signed off — Alteration
GENERAL RENOVATION OF 2-FAMILY HOUSE WITH NEW PARTITION, PAINTING WORK AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
Q01194143-I1
05/16/2025
Signed off — Alteration
GENERAL RENOVATION OF 2-FAMILY HOUSE WITH NEW PARTITION, PAINTING WORK AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
Q01194143-S1
05/14/2025
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
05/14/2025
Inspection — Certified Water and Sanitary-WS-Fixtures-Finish
Certified
View inspection ↗
03/28/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
03/28/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
03/18/2025
Permit issued — General Construction
Q01194143-I1-GC
03/18/2025
Permit issued — Plumbing
Q01194143-S1-PL
03/13/2025
Filed — Alteration
GENERAL RENOVATION OF 2-FAMILY HOUSE WITH NEW PARTITION, PAINTING WORK AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
Q01194143-I1
03/13/2025
Filed — Alteration
GENERAL RENOVATION OF 2-FAMILY HOUSE WITH NEW PARTITION, PAINTING WORK AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
Q01194143-S1
03/13/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Chun Feng
03/13/2025
Special inspection requirement — Energy Code Compliance Inspections
Chun Feng
03/12/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Chun Feng
03/12/2025
Special inspection requirement — Fire-Resistance Rated Construction
Chun Feng
03/12/2025
Special inspection requirement — Energy Code Compliance Inspections
Chun Feng
03/12/2025
Special inspection requirement — Final
Chun Feng
05/31/2024
Signed off — New Building
TEMPORARY 8' HIGH PLYWOOD CONSTRUCTION FENCE
Q00845408-S3
05/31/2024
Signed off — New Building
TEMPORARY 8' HIGH PLYWOOD CONSTRUCTION FENCE
Q00845408-S2
05/17/2024
Inspection — Pass-Final Curb Cut Non-Directive 14
Pass
View inspection ↗
05/14/2024
Filed — New Building
TEMPORARY 8' HIGH PLYWOOD CONSTRUCTION FENCE
Q00845408-P5
05/14/2024
Special inspection requirement — HVAC-R and service water heating equipment
Belal Salim
05/14/2024
Special inspection requirement — HVAC-R and service water heating system controls
Belal Salim
05/14/2024
Special inspection requirement — HVAC-R and service water piping design and insulation
Belal Salim
05/14/2024
Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation
Belal Salim
05/14/2024
Special inspection requirement — Post-installed Anchors
Belal Salim
05/14/2024
Special inspection requirement — HVAC-R and service water heating equipment
Belal Salim
05/14/2024
Special inspection requirement — HVAC-R and service water piping design and insulation
Belal Salim
05/14/2024
Special inspection requirement — Maintenance information
Belal Salim
05/14/2024
Special inspection requirement — HVAC-R and service water heating system controls
Belal Salim
05/14/2024
Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation
Belal Salim
05/14/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
Belal Salim
05/14/2024
Special inspection requirement — Post-installed Anchors
Belal Salim
05/14/2024
Special inspection requirement — Soil Percolation Test - Private On-Site Storm Water Drainage Disposal Systems, and Detention Facilities
Rajasekhar Sakhamuri
05/14/2024
Special inspection requirement — Energy Code Compliance Inspections
Belal Salim
05/14/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
Belal Salim
05/14/2024
Special inspection requirement — Soil Percolation Test - Private On-Site Storm Water Drainage Disposal Systems, and Detention Facilities
Rajasekhar Sakhamuri
05/14/2024
Special inspection requirement — Energy Code Compliance Inspections
Belal Salim
05/14/2024
Special inspection requirement — Maintenance information
Belal Salim
04/18/2024
Filed — New Building
TEMPORARY 8' HIGH PLYWOOD CONSTRUCTION FENCE
Q00845408-P4
04/12/2024
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
04/09/2024
Permit issued — Curb Cut
Q00845408-S3-CC
03/20/2024
Objection resolved — Addressed
03/11/2024
Objection raised — Energy
03/05/2024
Filed — New Building
TEMPORARY 8' HIGH PLYWOOD CONSTRUCTION FENCE
Q00845408-P3
02/29/2024
Signed off — New Building
TEMPORARY 8' HIGH PLYWOOD CONSTRUCTION FENCE
Q00845408-S1
02/29/2024
Filed — New Building
TEMPORARY 8' HIGH PLYWOOD CONSTRUCTION FENCE
Q00845408-P2
02/26/2024
Special inspection requirement — HVAC-R and service water piping design and insulation
Belal Salim
02/26/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
Belal Salim
02/26/2024
Special inspection requirement — Post-installed Anchors
Belal Salim
02/26/2024
Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation
Belal Salim
02/26/2024
Special inspection requirement — Soil Percolation Test - Private On-Site Storm Water Drainage Disposal Systems, and Detention Facilities
Rajasekhar Sakhamuri
02/26/2024
Special inspection requirement — Energy Code Compliance Inspections
Belal Salim
01/31/2024
Permit issued — Foundation
Q00845408-I1-GC-CX
11/21/2023
Filed — New Building
TEMPORARY 8' HIGH PLYWOOD CONSTRUCTION FENCE
Q00845408-P1
10/05/2023
Inspection — Certified Gas-Gas-Piping-Roughing
Certified
View inspection ↗
10/05/2023
Inspection — Certified Storm Drainage-ST-Piping-Roughing
Certified
View inspection ↗
10/05/2023
Inspection — Certified Storm Drainage-ST-Piping-Underground
Certified
View inspection ↗
10/05/2023
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
09/27/2023
Permit issued — Plumbing
Q00845408-S2-PL
08/28/2023
Filed — New Building
TEMPORARY 8' HIGH PLYWOOD CONSTRUCTION FENCE
Q00845408-S2
Latest 60 of 76 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWGeneral ConstructionSigned-offHIGH QUALITY CONSTRUCTION03/18/2025
DOB NOWPlumbingSigned-offAMERICAN STANDARD P&H CORORP.03/18/2025
DOB NOWCurb CutSigned-offMASTORAS BUILDERS LLC04/09/2024
DOB NOWFoundationPermit IssuedMASTORAS BUILDERS LLC01/31/2024
DOB NOWPlumbingSigned-offINFINITI ESC PLUMBING COR09/27/2023
DOB NOWEarth WorkPermit IssuedMASTORAS BUILDERS LLC07/24/2023
DOB NOWMechanical SystemsPermit IssuedMASTORAS BUILDERS LLC06/28/2023
DOB NOWConstruction FenceSigned-offMASTORAS BUILDERS LLC04/26/2023
1 project · most recent 05/14/2024
Air Conditioning Systems Heating Systems Ventilation Systems
FiledStatusContractorScopeMake / Model / Capacity
05/14/2024Signed-offMASTORAS BUILDERS LLCAir Conditioning Systems, Heating Systems, Ventilation Systems
Cooling
Guardian RAC13L48B23SA 48,000 BTU · Condensing Unit ×4
Heating
Weil-Mclain GWI-058-N-T 58,000 BTU · Boiler ×4
Ventilation
Delta SLM501 50 CFM ×10
Adp BCRMC6948S3N3 48,000 BTU ×2
BVRMC3948S3N4 48,000 BTU ×2
Air King ES248ADA 150 CFM · Kitchen Exhaust ×4
Panasonic FV-10VEC2 (1.2 CFM/WATT) 1 CFM · Erv ×4
1 project · most recent 05/14/2024
Gas Plumbing-Sprinkler Storm Water/Sanitary
FiledStatusContractorScope
05/14/2024Signed-offINFINITI ESC PLUMBING CORGas, Plumbing-Sprinkler, Storm, Water/Sanitary
2 projects · most recent 08/24/2023
General Wiring
FiledStatusContractorScope
08/24/2023CompletePOWER SURGE ELECTRIC, INCGeneral Wiring
11/09/2022CompletePOWER SURGE ELECTRIC, INC1 meters, 1 new_meters
1 project · most recent 05/14/2024
FiledStatusContractorScope
05/14/2024Signed-offMASTORAS BUILDERS LLC2 scope_items
1 project · most recent 05/14/2024
Fence
FiledStatusContractorScope
05/14/2024Signed-offMASTORAS BUILDERS LLCFence
1 project · most recent 05/14/2024
Earthwork
FiledStatusContractorScope
05/14/2024Signed-offMASTORAS BUILDERS LLCEarthwork
▾Field Inspections (DOB CAP) — 12
DateTypeResultReport
05/14/2025Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
05/14/2025Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
03/28/2025Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
03/28/2025Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
05/17/2024Pass-Final Curb Cut Non-Directive 14PassView ↗
04/12/2024Pass-Final CND-Occupancy InspectionPassView ↗
10/05/2023Certified Gas-Gas-Piping-RoughingCertifiedView ↗
10/05/2023Certified Storm Drainage-ST-Piping-RoughingCertifiedView ↗
10/05/2023Certified Storm Drainage-ST-Piping-UndergroundCertifiedView ↗
10/05/2023Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
08/10/2023Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
07/21/2023Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 45
DateRequirementInspectorRole
03/13/2025Fire-Resistant Penetrations and JointsChun Fengspecial
03/13/2025Energy Code Compliance InspectionsChun Fengprogress
03/12/2025Fire-Resistant Penetrations and JointsChun Fengspecial
03/12/2025Fire-Resistance Rated ConstructionChun Fengprogress
03/12/2025Energy Code Compliance InspectionsChun Fengprogress
03/12/2025FinalChun Fengprogress
05/14/2024HVAC-R and service water heating equipmentBelal Salimenergy_progress
05/14/2024HVAC-R and service water heating system controlsBelal Salimenergy_progress
05/14/2024HVAC-R and service water piping design and insulationBelal Salimenergy_progress
05/14/2024Private On-Site Storm Water Disposal Systems-, and Detention Facilities, InstallationBelal Salimspecial
05/14/2024Post-installed AnchorsBelal Salimspecial
05/14/2024HVAC-R and service water heating equipmentBelal Salimenergy_progress
05/14/2024HVAC-R and service water piping design and insulationBelal Salimenergy_progress
05/14/2024Maintenance informationBelal Salimenergy_progress
05/14/2024HVAC-R and service water heating system controlsBelal Salimenergy_progress
05/14/2024Private On-Site Storm Water Disposal Systems-, and Detention Facilities, InstallationBelal Salimspecial
05/14/2024Fire-Resistant Penetrations and JointsBelal Salimspecial
05/14/2024Post-installed AnchorsBelal Salimspecial
05/14/2024Soil Percolation Test - Private On-Site Storm Water Drainage Disposal Systems, and Detention FacilitiesRajasekhar Sakhamurispecial
05/14/2024Energy Code Compliance InspectionsBelal Salimprogress
05/14/2024Fire-Resistant Penetrations and JointsBelal Salimspecial
05/14/2024Soil Percolation Test - Private On-Site Storm Water Drainage Disposal Systems, and Detention FacilitiesRajasekhar Sakhamurispecial
05/14/2024Energy Code Compliance InspectionsBelal Salimprogress
05/14/2024Maintenance informationBelal Salimenergy_progress
02/26/2024HVAC-R and service water piping design and insulationBelal Salimenergy_progress
Latest 25 of 45.
▾Documents — 75 on file (BIS + DOB NOW)
▸Plans & Drawings11
▸DOB NOWPlans/Sketch11
08/22/2026Q00845408-S3Request digital key ↗
08/22/2026Q00845408-P5Request digital key ↗
08/22/2026Q00845408-P4Request digital key ↗
Showing 3 of 11 on file for this type
▸Zoning, Tax Lot & Property Records8
▸DOB NOWZD1: DOB Zoning Diagram3
08/22/2026Q00845408-P1Open ↗
08/15/2026Q00845408-P2Open ↗
08/15/2026Q00845408-I1Open ↗
▸DOB NOWZoning Exhibit form (1-5)2
08/15/2026Q00845408-P2Open ↗
08/15/2026Q00845408-I1Open ↗
▸DOB NOWRestrictive Declaration/Easement 12
08/13/2026Q01194143-S1Open ↗
08/13/2026Q01194143-I1Open ↗
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/15/2026Q00845408-I1Open ↗
▸Seals & Professional Certifications31
▸DOB NOWProgress Inspector Seal & Signature11
09/23/2026Q00845408-S2Open ↗
08/30/2026Q00845408-P5Open ↗
08/30/2026Q00845408-P5Open ↗
Showing 3 of 11 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature11
08/22/2026Q00845408-P5Open ↗
08/22/2026Q00845408-P4Open ↗
08/22/2026Q00845408-P3Open ↗
Showing 3 of 11 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature9
09/23/2026Q00845408-S2Open ↗
09/23/2026Q00845408-S2Open ↗
08/30/2026Q00845408-P5Open ↗
Showing 3 of 9 on file for this type
▸Trade Schedules & Equipment3
▸DOB NOWDEP: Sewer Certification (Sanitary/Storm)3
08/22/2026Q00845408-P1Open ↗
08/15/2026Q00845408-P2Open ↗
08/15/2026Q00845408-I1Open ↗
▸Safety & Tenant Protection6
▸DOB NOWStreet Tree Checklist3
08/22/2026Q00845408-P1Open ↗
08/15/2026Q00845408-P2Open ↗
08/15/2026Q00845408-I1Open ↗
▸DOB NOWStreet Trees Site Plan1
08/15/2026Q00845408-I1Open ↗
▸DOB NOWStreet Tree Sign Off1
08/15/2026Q00845408-I1Open ↗
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan1
08/15/2026Q00845408-I1Open ↗
▸Inspections & Test Reports5
▸DOB NOWSOIL REPORT3
08/22/2026Q00845408-P1Open ↗
08/15/2026Q00845408-P2Open ↗
08/15/2026Q00845408-I1Open ↗
▸DOB NOWGeotechnical Report (BC 1803.6)1
08/15/2026Q00845408-I1Open ↗
▸DOB NOWTR4 Test Report and Plot Diagram1
08/15/2026Q00845408-I1Open ↗
▸Other Documents11
▸DOB NOWSite Survey: Initial3
08/22/2026Q00845408-P1Open ↗
08/15/2026Q00845408-P2Open ↗
08/15/2026Q00845408-I1Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone3
08/22/2026Q00845408-P1Open ↗
08/15/2026Q00845408-P2Open ↗
08/15/2026Q00845408-I1Open ↗
▸DOB NOWProperty Ownership Certification3
08/22/2026Q00845408-P1Open ↗
08/15/2026Q00845408-P2Open ↗
08/15/2026Q00845408-I1Open ↗
▸DOB NOWFinal Survey1
08/15/2026Q00845408-I1Open ↗
▸DOB NOWAdjoining Owners Notification1
08/15/2026Q00845408-I1Open ↗