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Two stories - detached, small or mid-size
21 GARRETSON AVENUE
STATEN ISLAND · Grasmere-Arrochar-South Beach-Dongan Hills · BIN 5048643
💬 Discuss this project
1906Year Built
2.5Stories
A1Building Class
R3XZoning
2,600 sfGross Floor Area
1Units
FDNY Report ↗
Two stories - detached, small or mid-size · 7,275 sf lot · 0.36 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralPlumbing
Roof1p · 1 filing · 19 docs
Floor 13p · 1 filing · 19 docs
Cellar1p · 1 filing · 5 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
RONALD D.VICTORIO R.A.406/04/2025
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
TROOST BROS INCGeneral Contractor403/21/2026
STATEN ISLAND MECH LLCPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
A TECH ENGINEERING NYC, P6738206/04/2025
Building Lifecycle
All (27)Filed (4)Permit Issued (3)Signed Off (3)Inspection (2)Objection (4)Special Inspection (11)
06/18/2025
Signed off — Alteration
Horizontal enlargement at the 1st fl level of 134 sf for new bathroom under existing covered porch for the one family detached residence.
S08051748-I1
06/18/2025
Signed off — Alteration
Installation of (3) plumbing fixtures for new 1st floor bathroom including drain lines and water supply lines
S08051775-I1
06/13/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
anthony santoro
06/13/2025
Special inspection requirement — Final
anthony santoro
06/13/2025
Special inspection requirement — Structural Wood Frame
anthony santoro
06/13/2025
Special inspection requirement — Energy Code Compliance Inspections
anthony santoro
06/13/2025
Special inspection requirement — Fenestration air leakage
anthony santoro
06/13/2025
Special inspection requirement — Fenestration and door U-factor and product ratings
anthony santoro
06/13/2025
Special inspection requirement — Fenestration areas
anthony santoro
06/13/2025
Special inspection requirement — Air barrier - visual inspection
anthony santoro
06/13/2025
Special inspection requirement — Insulation placement and R values
anthony santoro
06/04/2025
Filed — Alteration
Horizontal enlargement at the 1st fl level of 134 sf for new bathroom under existing covered porch for the one family detached residence.
S08051748-P1
04/15/2025
Signed off — Alteration
Installation of temporary wood construction fence around the area of work to be performed filed under application number S08051748-I1
S00816923-I1
02/28/2024
Inspection — Certified Water and Sanitary-WS-Fixtures-Finish
Certified
View inspection ↗
02/27/2024
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
02/07/2024
Permit issued — Plumbing
S08051775-I1-PL
02/06/2024
Permit issued — Construction Fence
S00816923-I1-FN
02/06/2024
Permit issued — Structural
S08051748-I1-GC-CX
02/06/2023
Objection raised — Scope
02/06/2023
Objection resolved — Addressed
02/06/2023
Objection raised — Scope
02/06/2023
Objection resolved — Addressed
02/02/2023
Filed — Alteration
Installation of temporary wood construction fence around the area of work to be performed filed under application number S08051748-I1
S00816923-I1
01/24/2023
Filed — Alteration
Horizontal enlargement at the 1st fl level of 134 sf for new bathroom under existing covered porch for the one family detached residence.
S08051748-I1
01/24/2023
Filed — Alteration
Installation of (3) plumbing fixtures for new 1st floor bathroom including drain lines and water supply lines
S08051775-I1
01/18/2023
Special inspection requirement — Energy Code Compliance Inspections
anthony santoro
01/18/2023
Special inspection requirement — HVAC-R and service water piping design and insulation
anthony santoro
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingSigned-offSTATEN ISLAND MECH LLC02/07/2024
DOB NOWConstruction FenceSigned-offTROOST BROS INC02/06/2024
DOB NOWStructuralSigned-offTROOST BROS INC02/06/2024
1 project · most recent 03/17/2024
General Wiring
FiledStatusContractorScope
03/17/2024CompleteRIDGE ELECTRIC CORP.General Wiring
▾Field Inspections (DOB CAP) — 2
DateTypeResultReport
02/28/2024Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
02/27/2024Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 11
DateRequirementInspectorRole
06/13/2025Structural Stability – Alterations of existing buildingsanthony santorospecial
06/13/2025Finalanthony santoroprogress
06/13/2025Structural Wood Frameanthony santoroprogress
06/13/2025Energy Code Compliance Inspectionsanthony santoroprogress
06/13/2025Fenestration air leakageanthony santoroenergy_progress
06/13/2025Fenestration and door U-factor and product ratingsanthony santoroenergy_progress
06/13/2025Fenestration areasanthony santoroenergy_progress
06/13/2025Air barrier - visual inspectionanthony santoroenergy_progress
06/13/2025Insulation placement and R valuesanthony santoroenergy_progress
01/18/2023Energy Code Compliance Inspectionsanthony santoroprogress
01/18/2023HVAC-R and service water piping design and insulationanthony santoroenergy_progress
▾Documents — 26 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch4
08/23/2026S08051748-P1Request digital key ↗
08/23/2026S00816923-I1Request digital key ↗
08/15/2026S08051748-I1Request digital key ↗
Showing 3 of 4 on file for this type
▸Zoning, Tax Lot & Property Records4
▸DOB NOWZD1: DOB Zoning Diagram2
08/13/2026S08051748-I1Open ↗
08/13/2026S08051748-P1Open ↗
▸DOB NOWZoning Exhibit form (1-5)2
08/13/2026S08051748-I1Open ↗
08/13/2026S08051748-P1Open ↗
▸Seals & Professional Certifications9
▸DOB NOWDPL-1: Design Professional Seal & Signature4
08/13/2026S00816923-I1Open ↗
08/13/2026S08051775-I1Open ↗
08/13/2026S08051748-P1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWProgress Inspector Seal & Signature4
08/31/2026S08051748-I1Open ↗
08/31/2026S08051748-I1Open ↗
08/30/2026S08051775-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature1
08/31/2026S08051748-I1Open ↗
▸Environmental & Asbestos3
▸DOB NOWDEP ACP-5: Asbestos Assessment Report3
08/13/2026S08051775-I1Open ↗
08/13/2026S08051748-P1Open ↗
08/13/2026S08051748-I1Open ↗
▸Other Documents6
▸DOB NOWPlot Diagram2
08/13/2026S08051748-P1Open ↗
08/13/2026S08051748-I1Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone2
08/13/2026S08051748-P1Open ↗
08/13/2026S08051748-I1Open ↗
▸DOB NOWSite Survey: Initial2
08/13/2026S08051748-I1Open ↗
08/13/2026S08051748-P1Open ↗