Two family frame

423 LIBERTY AVENUE

STATEN ISLAND · New Dorp-Midland Beach · BIN 5050083

💬 Discuss this project

1970Year Built

2Stories

B2Building Class

R3-1Zoning

3,000 sfGross Floor Area

2Units

0 Open Violations

Two family frame · 5,000 sf lot · 0.6 FAR built · Flood zone X500

Locations of Work

ArchitecturePlumbing

Floor 22p · 1 filing · 18 docs

Floor 12p · 1 filing · 18 docs

Site & exterior3p · 2 filings · 20 docs

▾Owner History (Filing Record)

Companies and organizations named on filings. Individual owners are not shown.

Owner	Filings	Most Recent
A.D. ALPHA CONSTRUCTION C	1	03/22/2026

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
STEVEN R. SAVINO ARCHITECT PC	4	11/22/2022

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
A.D. ALPHA CONSTRUCTION C	General Contractor	3	03/21/2026
EH PLUMBING & HEATING COR	Plumbing	2	07/08/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
A TECH ENGINEERING NYC, P	6738	3	11/22/2022
RYAN DESIGN ARCHITECTURE	7159	2	11/22/2022

Building Lifecycle

All (25)Filed (4)Permit Issued (3)Signed Off (2)Violation (1)Special Inspection (15)

11/23/2022

Signed off — Alteration

INSTALLATION OF NEW PLUMING FIXTURES AND RELOCATION OF PLUMBING FIXTURES. ACTUAL CONSTRUCTION CLASS SHOULD READ II-E CONSTRUCTION, THERE IS NO CHOICE FOR THIS UNDER THE CONSTRUCTION CLASS SECTION. DOB IS AWARE OF THIS BUT HAS NOT FIXED IT YET.

S00317150-I1

11/23/2022

Special inspection requirement — Soil Percolation Test - Private On-Site Storm Water Drainage Disposal Systems, and Detention Facilities

anthony santoro

11/23/2022

Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation

Daniel Ryan

11/23/2022

Special inspection requirement — Energy Code Compliance

Steven Savino

11/23/2022

Special inspection requirement — Energy Code Compliance Inspections

Steven Savino

11/23/2022

Special inspection requirement — HVAC and service water heating equipment

Steven Savino

11/23/2022

Special inspection requirement — HVAC and service water heating system controls

Steven Savino

11/23/2022

Special inspection requirement — HVAC insulation and sealing

Steven Savino

11/22/2022

Filed — Alteration

S00317150-P3

11/12/2021

Filed — Alteration

S00317150-P1

10/26/2021

Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation

anthony santoro

10/26/2021

Special inspection requirement — Soil Percolation Test - Private On-Site Storm Water Drainage Disposal Systems, and Detention Facilities

anthony santoro

10/26/2021

Special inspection requirement — Energy Code Compliance

Steven Savino

10/26/2021

Special inspection requirement — Energy Code Compliance Inspections

Steven Savino

10/26/2021

Special inspection requirement — HVAC insulation and sealing

Steven Savino

10/26/2021

Special inspection requirement — HVAC and service water heating equipment

Steven Savino

10/26/2021

Special inspection requirement — HVAC and service water heating system controls

Steven Savino

05/18/2021

Signed off — Alteration

ERECTION OF A WOOD CONSTRUCTION FENCE.

S00272681-I1

03/22/2021

Permit issued — Plumbing

S00317150-I1-PL

02/17/2021

Permit issued — Plumbing

S00317150-I1-PL

02/11/2021

Filed — Alteration

S00317150-I1

12/03/2020

Violation issued (ECB, closed)

Construction

11/25/2020

Permit issued — Construction Fence

S00272681-I1-FN

10/08/2020

Filed — Alteration

ERECTION OF A WOOD CONSTRUCTION FENCE.

S00272681-I1

11/26/2019

Special inspection requirement — Final

Steven Savino

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	Plumbing	Signed-off	EH PLUMBING & HEATING COR	03/22/2021
DOB NOW	Plumbing	Signed-off	EH PLUMBING & HEATING COR	02/17/2021
DOB NOW	Construction Fence	Signed-off	A.D. ALPHA CONSTRUCTION C	11/25/2020
BIS	OT	ISSUED	SEA BRIGHT SOLAR LLC	11/28/2022
BIS	—	ISSUED	A.D. ALPHA CONSTRUCTION C	05/25/2021
BIS	—	ISSUED	A.D. ALPHA CONSTRUCTION C	10/02/2020

3 projects · most recent 12/16/2022

General Wiring

Filed	Status	Contractor	Scope
12/16/2022	Complete	AMBER ELECTL CONTNG INC	—
03/15/2021	Complete	APCO ELECTRICAL CORP	2 meters, 2 new_meters
01/06/2021	Complete	APCO ELECTRICAL CORP	General Wiring

▾Special Inspection Requirements (DOB NOW) — 15

Date	Requirement	Inspector	Role
11/23/2022	Soil Percolation Test - Private On-Site Storm Water Drainage Disposal Systems, and Detention Facilities	anthony santoro	special
11/23/2022	Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation	Daniel Ryan	special
11/23/2022	Energy Code Compliance	Steven Savino	progress
11/23/2022	Energy Code Compliance Inspections	Steven Savino	progress
11/23/2022	HVAC and service water heating equipment	Steven Savino	energy_progress
11/23/2022	HVAC and service water heating system controls	Steven Savino	energy_progress
11/23/2022	HVAC insulation and sealing	Steven Savino	energy_progress
10/26/2021	Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation	anthony santoro	special
10/26/2021	Soil Percolation Test - Private On-Site Storm Water Drainage Disposal Systems, and Detention Facilities	anthony santoro	special
10/26/2021	Energy Code Compliance	Steven Savino	progress
10/26/2021	Energy Code Compliance Inspections	Steven Savino	progress
10/26/2021	HVAC insulation and sealing	Steven Savino	energy_progress
10/26/2021	HVAC and service water heating equipment	Steven Savino	energy_progress
10/26/2021	HVAC and service water heating system controls	Steven Savino	energy_progress
11/26/2019	Final	Steven Savino	progress

▾Documents — 110 on file (BIS + DOB NOW)

▸Plans & Drawings4

▸DOB NOWPlans/Sketch - Plumbing3

08/25/2026S00317150-I1Request digital key ↗

08/25/2026S00317150-P1Request digital key ↗

08/15/2026S00317150-P3Request digital key ↗

▸DOB NOWPlans/Sketch - Construction Fence1

08/25/2026S00272681-I1Request digital key ↗

▸Applications & Permits12

▸BISPLAN / WORK APPROVAL APPLICATION7

04/17/2023520394957Open ↗

04/14/2023520394957Open ↗

11/25/2022540241308Open ↗

Showing 3 of 7 on file for this type

▸BISWORK PERMIT APPLICATION3

11/28/2022540241308Open ↗

05/25/2021520394957Open ↗

10/02/2020520394957Open ↗

▸BISBPP-5 - Authorization to the Department of Transportation1

12/04/2019520395260Open ↗

▸BISCERTIFICATE OF OCCUPANCY: APPLICATION1

08/11/2021520394957Open ↗

▸Zoning, Tax Lot & Property Records6

▸BISZONING DIAGRAM2

04/01/2020520394957Open ↗

▸BISVERIFY TAX LOT1

03/14/2023520394957Open ↗

▸BISCO OBJ: VERIFY ADDRESS-TOPO STAMP1

01/23/2023520394957Open ↗

▸BISFLOOD ZONE DESIGN CERTIFICATION1

11/25/2022540241308Open ↗

▸BISZONING EXHIBIT III:DESC. & OWNRSHP.STMNT1

03/11/2020520394957Open ↗

▸Seals & Professional Certifications21

▸DOB NOWProgress Inspector Seal & Signature5

09/01/2026S00317150-I1Open ↗

08/24/2026S00317150-P1Open ↗

Showing 3 of 5 on file for this type

▸DOB NOWSpecial Inspector Seal & Signature4

09/01/2026S00317150-I1Open ↗

08/24/2026S00317150-P1Open ↗

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▸DOB NOWDPL-1: Design Professional Seal & Signature4

08/25/2026S00317150-I1Open ↗

08/25/2026S00317150-P1Open ↗

08/13/2026S00317150-P3Open ↗

Showing 3 of 4 on file for this type

▸BISPROFESSIONAL CERTIFICATION STATEMENT2

11/25/2022540241308Open ↗

03/11/2020520394957Open ↗

▸BISPROFESSIONAL CERTIFIED CHECKLIST2

03/27/2020520394957Open ↗

03/11/2020520394957Open ↗

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION2

03/11/2020520394957Open ↗

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY1

11/25/2022540241308Open ↗

▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION1

11/25/2022540241308Open ↗

▸Trade Schedules & Equipment1

▸BISSEWER/HOUSE CON SIGNOFF: DEP HC 0211

03/11/2020520394957Open ↗

▸Safety & Tenant Protection3

▸BISDEMOLITION SUBMITTAL CERTIFICATION FORM1

03/11/2020520394957Open ↗

▸BISSTREET TREE CHECKLIST1

03/11/2020520394957Open ↗

▸BISTPP1: TENANT PROTECTION PLAN1

11/28/2022540241308Open ↗

▸Environmental & Asbestos5

▸DOB NOWDEP ACP-5: Asbestos Assessment Report3

08/25/2026S00317150-I1Open ↗

08/25/2026S00317150-P1Open ↗

08/13/2026S00317150-P3Open ↗

▸BISASBESTOS: CERTIFICATION (DEP ACP5)2

11/25/2022540241308Open ↗

03/11/2020520394957Open ↗

▸Energy Compliance17

▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY3

01/31/2023540241308Open ↗

11/28/2022540241308Open ↗

11/25/2022540241308Open ↗

▸BISAS-BUILT ENERGY ANALYSIS (EN2)2

03/14/2023520394957Open ↗

01/31/2023540241308Open ↗

▸BISAIR SEALING AND INSULATION - VISUAL1

03/29/2023520394957Open ↗

▸BISFENESTRATION U-FACTOR & PRODUCT RATING1

03/29/2023520394957Open ↗

▸BISFENESTRATION AREAS1

03/29/2023520394957Open ↗

▸BISPTA4: SOLAR TAX ABATEMENT APPLICATION (PRELIMINARY)1

11/25/2022540241308Open ↗

▸BISPTA4: SOLAR TAX ABATEMENT APPLICATION (FINAL)1

02/16/2023540241308Open ↗

▸BISINSULATION PLACEMENT & R VALUES1

03/29/2023520394957Open ↗

▸BISLIGHTING IN DWELLING UNITS1

03/29/2023520394957Open ↗

▸BISENERGY CODE COMPLIANCE INSPECTIONS1

03/29/2023520394957Open ↗

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS1

03/11/2020520394957Open ↗

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY FOR ENERGY CODE PROGRESS INSPECTIONS1

11/25/2022540241308Open ↗

▸BISFENESTRATION AIR LEAKAGE1

03/29/2023520394957Open ↗

▸DOB NOWEN2: As Built Energy Analysis.1

08/13/2026S00317150-I1Open ↗

▸Inspections & Test Reports14

▸BISTECHNICAL REPORT: RESPONSIBILITY4

02/16/2023540241308Open ↗

01/31/2023540241308Open ↗

11/28/2022540241308Open ↗

Showing 3 of 4 on file for this type

▸BISSTRUCTURAL STABILITY - ALTERATIONS OF EXISTING BUILDINGS1

03/29/2023520394957Open ↗

▸BISFIRE-RESISTANT PENETRATIONS AND JOINTS (FIRESTOP)1

03/29/2023520394957Open ↗

▸BISFIRE-RESISTIVE RATED CONSTRUCTION1

03/29/2023520394957Open ↗

▸BISFOOTING AND FOUNDATION INSPECTION1

03/29/2023520394957Open ↗

▸BISBPP-9 - Request for Builders Pavement Field Inspection1

12/04/2019520395260Open ↗

▸BISSOIL BEARING PRESSURE (AI-1) 27-6781

03/11/2020520394957Open ↗

▸BISBORINGS / TEST PITS (TR-4) 27-7201

03/11/2020520394957Open ↗

▸BISSUBGRADE INSP / SOILS-SITE PREP1

03/29/2023520394957Open ↗

▸BISFRAME (2008)/STRUCTURAL WOOD FRAME (2014) INSPECTION1

03/29/2023520394957Open ↗

▸BISCONCRETE - CAST-IN-PLACE1

03/29/2023520394957Open ↗

▸Approvals, Objections & Sign-offs9

▸BISADMINISTRATIVE OBJECTIONS2

03/11/2020520394957Open ↗

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▸BISLETTERS - SUPPORTING DOCUMENTATION2

05/25/2021520394957Open ↗

12/04/2019520395260Open ↗

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST1

02/17/2023540241308Open ↗

▸BISSCHEDULE A - OCCUPANCY / USE1

03/11/2020520394957Open ↗

▸BISBPP-8 - Request Items for Builders Pavement Plan Signoff1

12/04/2019520395260Open ↗

▸BISNYS DEC FRESHWATER WETLANDS APPROVAL1

03/11/2020520394957Open ↗

▸BISSUPERSEDING LETTER1

05/25/2021520394957Open ↗

▸Cost, Insurance & Ownership4

▸BISCOST AFFIDAVIT (FINAL): PW32

03/17/2023520394957Open ↗

01/31/2023540241308Open ↗

▸BISCOST AFFIDAVIT2

11/25/2022540241308Open ↗

03/11/2020520394957Open ↗

▸Filing & Intake Forms9

▸BISADDITIONAL INFORMATION5

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03/31/2023520394957Open ↗

11/25/2022540241308Open ↗

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▸BISEFILING COVER SHEET2

03/11/2020520394957Open ↗

11/21/2019520395260Open ↗

▸BISEFILING JOB APPLICATION COVER SHEET1

11/25/2022540241308Open ↗

▸BISBOROUGH INTAKE FORM1

03/27/2020520394957Open ↗

▸Other Documents5

▸BISSUSTAINABLE ROOF ZONE FORM2

03/31/2023520394957Open ↗

04/02/2020520394957Open ↗

▸BISTax Abatement Miscellaneous1

02/17/2023540241308Open ↗

▸BISPLOT DIAGRAM1

04/02/2020520394957Open ↗

▸BISFEMA ELEVATION CERT (086-0-33)/ FLOODPROOFING CERT (086-0-34)1

12/04/2019520395260Open ↗