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Two family converted from one family
12 MARY STREET
STATEN ISLAND · BIN 5043457
💬 Discuss this project
1925Year Built
2.5Stories
B3Building Class
R3AZoning
2,263 sfGross Floor Area
2Units
FDNY Report ↗
Two family converted from one family · 7,220 sf lot · 0.31 FAR built · Flood zone X
Locations of Work
ArchitecturePlumbing
Floor 37p · 1 filing · 20 docs
Floor 27p · 1 filing · 20 docs
Floor 17p · 1 filing · 20 docs
Cellar12p · 2 filings · 20 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
WILLY C. YUIN ARCH. PLLC807/31/2025
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
BAYVIEW REAL ESTATE CONSULTANTGeneral Contractor203/21/2026
A.D.S. PLBG AND HTG INCPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
A TECH ENGINEERING NYC, P6738507/31/2025
Building Lifecycle
All (52)Filed (8)Permit Issued (2)Signed Off (2)Inspection (6)Objection (4)Special Inspection (30)
08/06/2026
Signed off — Alteration CO
PROPOSED CONVERSION OF AN EXISTING ONE FAMILY RESIDENCE TO A TWO FAMILY DWELLING WITH OPEN EXTERIOR DECK. NO PROPOSED CHANGE TO EXISTING FLOOR AREA OR LOT COVERAGE. ALTERATION WORK IS INTERIOR RENOVATION ONLY.
S00833579-I1
08/05/2025
Special inspection requirement — Permanent certificate
anthony santoro
08/05/2025
Special inspection requirement — Insulation placement and R values
anthony santoro
08/05/2025
Special inspection requirement — Interior lighting power
anthony santoro
08/05/2025
Special inspection requirement — Energy Code Compliance Inspections
anthony santoro
08/05/2025
Special inspection requirement — Fire-Resistance Rated Construction
anthony santoro
08/05/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
anthony santoro
07/31/2025
Filed — Alteration CO
PROPOSED CONVERSION OF AN EXISTING ONE FAMILY RESIDENCE TO A TWO FAMILY DWELLING WITH OPEN EXTERIOR DECK. NO PROPOSED CHANGE TO EXISTING FLOOR AREA OR LOT COVERAGE. ALTERATION WORK IS INTERIOR RENOVATION ONLY.
S00833579-P5
07/23/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
anthony santoro
07/23/2025
Special inspection requirement — Energy Code Compliance Inspections
anthony santoro
07/23/2025
Special inspection requirement — Fire-Resistance Rated Construction
anthony santoro
07/23/2025
Special inspection requirement — Interior lighting power
anthony santoro
07/23/2025
Special inspection requirement — Permanent certificate
anthony santoro
07/23/2025
Special inspection requirement — Insulation placement and R values
anthony santoro
12/18/2024
Filed — Alteration CO
PROPOSED CONVERSION OF AN EXISTING ONE FAMILY RESIDENCE TO A TWO FAMILY DWELLING WITH OPEN EXTERIOR DECK. NO PROPOSED CHANGE TO EXISTING FLOOR AREA OR LOT COVERAGE. ALTERATION WORK IS INTERIOR RENOVATION ONLY.
S00833579-P3
12/16/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
anthony santoro
12/16/2024
Special inspection requirement — Energy Code Compliance Inspections
anthony santoro
12/16/2024
Special inspection requirement — Fire-Resistance Rated Construction
anthony santoro
12/16/2024
Special inspection requirement — Insulation placement and R values
anthony santoro
12/16/2024
Special inspection requirement — Permanent certificate
anthony santoro
12/16/2024
Special inspection requirement — Interior lighting power
anthony santoro
11/21/2024
Signed off — Alteration
S00833593-I1
10/22/2024
Filed — Alteration CO
PROPOSED CONVERSION OF AN EXISTING ONE FAMILY RESIDENCE TO A TWO FAMILY DWELLING WITH OPEN EXTERIOR DECK. NO PROPOSED CHANGE TO EXISTING FLOOR AREA OR LOT COVERAGE. ALTERATION WORK IS INTERIOR RENOVATION ONLY.
S00833579-P2
10/22/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
anthony santoro
10/22/2024
Special inspection requirement — Energy Code Compliance Inspections
anthony santoro
10/22/2024
Special inspection requirement — Fire-Resistance Rated Construction
anthony santoro
10/22/2024
Special inspection requirement — Insulation placement and R values
anthony santoro
10/22/2024
Special inspection requirement — Permanent certificate
anthony santoro
10/22/2024
Special inspection requirement — Interior lighting power
anthony santoro
09/26/2024
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
08/28/2024
Objection raised — Scope
08/28/2024
Objection resolved — Addressed
08/15/2024
Special inspection requirement — Permanent certificate
anthony santoro
08/15/2024
Special inspection requirement — HVAC-R and service water piping design and insulation
anthony santoro
08/15/2024
Special inspection requirement — HVAC-R and service water heating system controls
anthony santoro
08/15/2024
Special inspection requirement — Energy Code Compliance Inspections
anthony santoro
08/15/2024
Special inspection requirement — HVAC-R and service water heating equipment
anthony santoro
08/15/2024
Special inspection requirement — Maintenance information
anthony santoro
08/14/2024
Filed — Alteration CO
PROPOSED CONVERSION OF AN EXISTING ONE FAMILY RESIDENCE TO A TWO FAMILY DWELLING WITH OPEN EXTERIOR DECK. NO PROPOSED CHANGE TO EXISTING FLOOR AREA OR LOT COVERAGE. ALTERATION WORK IS INTERIOR RENOVATION ONLY.
S00833579-P1
08/14/2024
Filed — Alteration
S00833593-P2
02/15/2024
Inspection — Certified Water and Sanitary-WS-Fixtures-Finish
Certified
View inspection ↗
01/31/2024
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
01/24/2024
Filed — Alteration
S00833593-P1
01/22/2024
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
11/09/2023
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
07/31/2023
Inspection — Pass-Final PL - Underground
Pass
View inspection ↗
07/12/2023
Permit issued — General Construction
S00833579-I1-GC
06/26/2023
Permit issued — Plumbing
S00833593-I1-PL
04/25/2023
Objection raised — Scope
04/25/2023
Objection resolved — Addressed
04/12/2023
Filed — Alteration CO
PROPOSED CONVERSION OF AN EXISTING ONE FAMILY RESIDENCE TO A TWO FAMILY DWELLING WITH OPEN EXTERIOR DECK. NO PROPOSED CHANGE TO EXISTING FLOOR AREA OR LOT COVERAGE. ALTERATION WORK IS INTERIOR RENOVATION ONLY.
S00833579-I1
04/12/2023
Filed — Alteration
S00833593-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWGeneral ConstructionPermit IssuedARTHUR.J GALLAGHER07/12/2023
DOB NOWPlumbingSigned-offA.D.S. PLBG AND HTG INC06/26/2023
1 project · most recent 06/27/2023
General Wiring
FiledStatusContractorScope
06/27/2023CompleteA & R ELEC'L CONTR'G INC.General Wiring
▾Field Inspections (DOB CAP) — 6
DateTypeResultReport
09/26/2024Pass-Final CND-Occupancy InspectionPassView ↗
02/15/2024Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
01/31/2024Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
01/22/2024Pass-Final PL - Up to 3 Requested FloorsPassView ↗
11/09/2023Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
07/31/2023Pass-Final PL - UndergroundPassView ↗
▾Special Inspection Requirements (DOB NOW) — 48
DateRequirementInspectorRole
08/05/2025Permanent certificateanthony santoroenergy_progress
08/05/2025Insulation placement and R valuesanthony santoroenergy_progress
08/05/2025Interior lighting poweranthony santoroenergy_progress
08/05/2025Energy Code Compliance Inspectionsanthony santoroprogress
08/05/2025Fire-Resistance Rated Constructionanthony santoroprogress
08/05/2025Fire-Resistant Penetrations and Jointsanthony santorospecial
07/23/2025Fire-Resistant Penetrations and Jointsanthony santorospecial
07/23/2025Energy Code Compliance Inspectionsanthony santoroprogress
07/23/2025Fire-Resistance Rated Constructionanthony santoroprogress
07/23/2025Interior lighting poweranthony santoroenergy_progress
07/23/2025Permanent certificateanthony santoroenergy_progress
07/23/2025Insulation placement and R valuesanthony santoroenergy_progress
12/16/2024Fire-Resistant Penetrations and Jointsanthony santorospecial
12/16/2024Energy Code Compliance Inspectionsanthony santoroprogress
12/16/2024Fire-Resistance Rated Constructionanthony santoroprogress
12/16/2024Insulation placement and R valuesanthony santoroenergy_progress
12/16/2024Permanent certificateanthony santoroenergy_progress
12/16/2024Interior lighting poweranthony santoroenergy_progress
10/22/2024Fire-Resistant Penetrations and Jointsanthony santorospecial
10/22/2024Energy Code Compliance Inspectionsanthony santoroprogress
10/22/2024Fire-Resistance Rated Constructionanthony santoroprogress
10/22/2024Insulation placement and R valuesanthony santoroenergy_progress
10/22/2024Permanent certificateanthony santoroenergy_progress
10/22/2024Interior lighting poweranthony santoroenergy_progress
08/15/2024Permanent certificateanthony santoroenergy_progress
Latest 25 of 48.
▾Documents — 57 on file (BIS + DOB NOW)
▸Plans & Drawings8
▸DOB NOWPlans/Sketch8
08/21/2026S00833593-I1Request digital key ↗
08/21/2026S00833593-P2Request digital key ↗
08/21/2026S00833593-P1Request digital key ↗
Showing 3 of 8 on file for this type
▸Zoning, Tax Lot & Property Records6
▸DOB NOWZoning Exhibit form (1-5)5
08/13/2026S00833579-I1Open ↗
08/13/2026S00833579-P5Open ↗
08/13/2026S00833579-P3Open ↗
Showing 3 of 5 on file for this type
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026S00833579-I1Open ↗
▸Seals & Professional Certifications29
▸DOB NOWProgress Inspector Seal & Signature16
09/01/2026S00833579-P1Open ↗
09/01/2026S00833579-P1Open ↗
09/01/2026S00833593-I1Open ↗
Showing 3 of 16 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature8
08/21/2026S00833593-I1Open ↗
08/21/2026S00833593-P2Open ↗
08/21/2026S00833593-P1Open ↗
Showing 3 of 8 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature5
09/01/2026S00833579-P1Open ↗
09/01/2026S00833579-P2Open ↗
08/26/2026S00833579-I1Open ↗
Showing 3 of 5 on file for this type
▸Environmental & Asbestos8
▸DOB NOWDEP ACP-5: Asbestos Assessment Report8
08/21/2026S00833593-P2Open ↗
08/21/2026S00833593-P1Open ↗
08/21/2026S00833593-I1Open ↗
Showing 3 of 8 on file for this type
▸Other Documents6
▸DOB NOWProperty Ownership Certification5
08/13/2026S00833579-P2Open ↗
08/13/2026S00833579-I1Open ↗
08/13/2026S00833579-P1Open ↗
Showing 3 of 5 on file for this type
▸DOB NOWFinal Survey1
08/18/2026S00833579-I1Open ↗