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STATEN ISLAND
221 THORNYCROFT AVENUE
STATEN ISLAND · BIN 5067919
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—Year Built
—Stories
—Building Class
—Zoning
—Gross Floor Area
—Units
Locations of Work
ArchitectureStructuralPlumbing
Permit Issued — active, not yet Signed-off
RoofUnder Construction1p · 1 filing · 20 docs
Floor 2Under Construction4p · 1 filing · 20 docs
Floor 1Under Construction4p · 1 filing · 20 docs
BasementUnder Construction4p · 1 filing · 20 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
A TECH ENGINEERING NYC, PLLC.108/04/2026
CHRIS PONISI, ARCHITECT407/24/2026
ANTHONY SANTORO1—
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
TROOST BROS INCGeneral Contractor206/02/2026
CAPITAL CONTR P&H CORPPlumbing106/27/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
A TECH ENGINEERING NYC, P6738307/24/2026
Building Lifecycle
All (8)Filed (5)Permit Issued (3)
08/04/2026
Filed — Alteration CO
NEW SECOND STORY ADDITION AND MISC. WORK THROUGHOUT AS INDICATED ON PLANS SUBMITTED HEREWITH
S01376710-S3
07/24/2026
Filed — Alteration CO
NEW SECOND STORY ADDITION AND MISC. WORK THROUGHOUT AS INDICATED ON PLANS SUBMITTED HEREWITH
S01376710-P1
06/18/2026
Permit issued — Plumbing
S01376710-S1-PL
05/21/2026
Permit issued — Structural
S01376710-I1-GC-CX
05/13/2026
Permit issued — Construction Fence
S01378725-I1-FN
04/15/2026
Filed — Alteration
temporary construction fence
S01378725-I1
03/26/2026
Filed — Alteration CO
NEW SECOND STORY ADDITION AND MISC. WORK THROUGHOUT AS INDICATED ON PLANS SUBMITTED HEREWITH
S01376710-I1
03/26/2026
Filed — Alteration CO
NEW SECOND STORY ADDITION AND MISC. WORK THROUGHOUT AS INDICATED ON PLANS SUBMITTED HEREWITH
S01376710-S1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingPermit IssuedCAPITAL CONTR P&H CORP06/18/2026
DOB NOWStructuralPermit IssuedTROOST BROS INC05/21/2026
DOB NOWConstruction FencePermit IssuedTROOST BROS INC05/13/2026
1 project · most recent 08/04/2026
Heating and Air Conditioning Systems Ventilation Systems
FiledStatusContractorScope
08/04/2026Permit IssuedTROOST BROS INCHeating and Air Conditioning Systems, Ventilation Systems
1 project · most recent 08/04/2026
Gas Water/Sanitary
FiledStatusContractorScope
08/04/2026Permit IssuedCAPITAL CONTR P&H CORPGas, Water/Sanitary
1 project · most recent 08/24/2026
General Wiring
FiledStatusContractorScope
08/24/2026Permit IssuedRIDGE ELECTRIC CORP.General Wiring
1 project · most recent 08/04/2026
Concrete Wood
FiledStatusContractorScope
08/04/2026Permit IssuedCAPITAL CONTR P&H CORPConcrete, Wood
1 project · most recent 04/15/2026
Fence
FiledStatusContractorScope
04/15/2026Permit IssuedTROOST BROS INCFence
▾Field Inspections (DOB CAP) — 1
DateTypeResultReport
09/10/2026Pass-Final PL - Up to 3 Requested FloorsPassView ↗
▾Special Inspection Requirements (DOB NOW) — 28
DateRequirementInspectorRole
07/27/2026HVAC-R and service water heating system controlsanthony santoroenergy_progress
07/27/2026HVAC-R and service water piping design and insulationanthony santoroenergy_progress
07/27/2026Energy Code Compliance Inspectionsanthony santoroprogress
07/27/2026Fire-Resistant Penetrations and Jointsanthony santorospecial
07/23/2026Fire-Resistant Penetrations and Jointsanthony santorospecial
07/23/2026Energy Code Compliance Inspectionsanthony santoroprogress
07/23/2026HVAC-R and service water heating system controlsanthony santoroenergy_progress
07/23/2026HVAC-R and service water piping design and insulationanthony santoroenergy_progress
03/26/2026Interior lighting poweranthony santoroenergy_progress
03/23/2026Structural Stability – Alterations of existing buildingsanthony santorospecial
03/23/2026Energy Code Compliance Inspectionsanthony santoroprogress
03/23/2026Fire-Resistance Rated Constructionanthony santoroprogress
03/23/2026Structural Wood Frameanthony santoroprogress
03/23/2026Finalanthony santoroprogress
03/23/2026Footing and Foundationanthony santoroprogress
03/23/2026Fenestration and door U-factor and product ratingsanthony santoroenergy_progress
03/23/2026HVAC-R and service water heating system controlsanthony santoroenergy_progress
03/23/2026Air barrier — testing anthony santoroenergy_progress
03/23/2026Fenestration areasanthony santoroenergy_progress
03/23/2026Air barrier - visual inspectionanthony santoroenergy_progress
03/23/2026HVAC-R and service water piping design and insulationanthony santoroenergy_progress
03/23/2026Insulation placement and R valuesanthony santoroenergy_progress
03/23/2026Fenestration air leakageanthony santoroenergy_progress
03/23/2026Fire-Resistant Penetrations and Jointsanthony santorospecial
03/23/2026Concrete - Cast-In-Placeanthony santorospecial
Latest 25 of 28.
▾Documents — 39 on file (BIS + DOB NOW)
▸Plans & Drawings5
▸DOB NOWPlans/Sketch5
08/17/2026S01376710-I1Request digital key ↗
08/17/2026S01376710-S1Request digital key ↗
08/17/2026S01376710-S3Request digital key ↗
Showing 3 of 5 on file for this type
▸Zoning, Tax Lot & Property Records3
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026S01376710-I1Open ↗
▸DOB NOWZoning Exhibit form (1-5)1
08/13/2026S01376710-I1Open ↗
▸DOB NOWZD1: DOB Zoning Diagram1
08/13/2026S01376710-I1Open ↗
▸Seals & Professional Certifications17
▸DOB NOWProgress Inspector Seal & Signature6
09/01/2026S01376710-I1Open ↗
09/01/2026S01376710-I1Open ↗
08/24/2026S01376710-S1Open ↗
Showing 3 of 6 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature5
09/01/2026S01376710-I1Open ↗
09/01/2026S01376710-I1Open ↗
09/01/2026S01376710-I1Open ↗
Showing 3 of 5 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature5
08/17/2026S01376710-S3Open ↗
08/17/2026S01376710-P1Open ↗
08/17/2026S01376710-S1Open ↗
Showing 3 of 5 on file for this type
▸BISAPPLICANT OWNER SIGNATURE1
03/06/2026540269225Open ↗
▸Safety & Tenant Protection1
▸DOB NOWStreet Tree Checklist1
08/13/2026S01376710-I1Open ↗
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
08/17/2026S01376710-S3Open ↗
08/17/2026S01376710-P1Open ↗
08/17/2026S01376710-S1Open ↗
Showing 3 of 4 on file for this type
▸Inspections & Test Reports4
▸BISBPP-9 - Request for Builders Pavement Field Inspection1
03/06/2026540269225Open ↗
▸BISTECHNICAL REPORT: RESPONSIBILITY1
03/06/2026540269225Open ↗
▸DOB NOWTR4 Test Report and Plot Diagram1
08/13/2026S01376710-I1Open ↗
▸DOB NOWSOIL REPORT1
08/13/2026S01376710-I1Open ↗
▸Other Documents5
▸BISBPP - SUPPORTING DOCUMENTATION1
03/06/2026540269225Open ↗
▸DOB NOWSite Survey: Initial1
08/13/2026S01376710-I1Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1
08/13/2026S01376710-I1Open ↗
▸DOB NOWPlot Diagram1
08/13/2026S01376710-I1Open ↗
▸DOB NOWProperty Ownership Certification1
08/17/2026S01376710-I1Open ↗