Two family converted from one family

91 WALKER STREET

STATEN ISLAND · BIN 5026245

💬 Discuss this project

1915Year Built

2Stories

B3Building Class

R3AZoning

3,252 sfGross Floor Area

2Units

0 Open ViolationsFDNY Report ↗

Two family converted from one family · 6,250 sf lot · 0.52 FAR built · Flood zone X

Locations of Work

Architecture

Roof2p · 1 filing · 9 docs

▾Owner History (Filing Record)

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

Owner	Filings	Most Recent
CHS CONTRACTING	5	03/22/2026

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
ALFRED V SAULO, ARCHITECT PC	4	02/03/2025
SQUARE ARCH, LLC	1	12/14/2023

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
KAMTECH RESTORATION CORP	2	03/21/2026
VSS CONSULTANTS	8	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
CHS CONTRACTING LLC	General Contractor	3	07/08/2026
YC DEVELOPERS INC	General Contractor	3	03/21/2026
AVS CONSTRUCTION MGMT INC	General Contractor	2	03/21/2026
KAMTECH RESTORATION CORP	General Contractor	2	03/21/2026
TOP DOG PLBG & HTG CORP	Plumbing	2	07/08/2026
CRESCO ELECTRICAL CORP	Electrical	1	03/22/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
ALFRED V SAULO, ARCHITECT	1905	2	12/26/2024
SQ. ARCH, LLC	4802	1	12/14/2023

Building Lifecycle

All (42)Filed (5)Permit Issued (7)Signed Off (3)Violation (8)Inspection (4)Objection (4)Special Inspection (11)

12/04/2025

Special inspection requirement — HVAC-R and service water heating system controls

ALFRED SAULO

12/04/2025

Special inspection requirement — Energy Code Compliance Inspections

ALFRED SAULO

12/04/2025

Special inspection requirement — Fire-Resistant Penetrations and Joints

ALFRED SAULO

11/20/2025

Objection resolved — Addressed

06/25/2025

Objection resolved — Addressed

02/11/2025

Signed off — Alteration

S01174038-I1

02/07/2025

Inspection — Pass-Final Curb Cut Non-Directive 14

Pass

View inspection ↗

02/05/2025

Permit issued — Curb Cut

S01174038-I1-CC

02/03/2025

Filed — Alteration

S01174038-I1

12/31/2024

Objection raised — Other

12/31/2024

Objection raised — Other

12/26/2024

Filed — Alteration

PAA P1 filed to submit revised plans to reflect As-built conditions; Relocated 3 fixture bath in cellar, b #: 540189375

S00620244-P1

11/06/2024

Signed off — Alteration

fence filed in conjunction with alt 1 Job #: 540189375 to obtain necessary fence permit for general construction/enlargement.

S00493982-I1

01/11/2024

Signed off — Alteration

ROOFTOP SOLAR INSTALLATION. NO CHANGE TO USE, OCCUPANCY OR EGRESS.

S00977216-I1

12/21/2023

Permit issued — Solar

S00977216-I1-SL

12/14/2023

Filed — Alteration

ROOFTOP SOLAR INSTALLATION. NO CHANGE TO USE, OCCUPANCY OR EGRESS.

S00977216-I1

12/14/2023

Special inspection requirement — Final

Kaijin Liang

12/14/2023

Special inspection requirement — Air barrier - visual inspection

Kaijin Liang

12/14/2023

Special inspection requirement — Fire-Resistant Penetrations and Joints

Kaijin Liang

12/14/2023

Special inspection requirement — Structural Stability – Alterations of existing buildings

Kaijin Liang

12/14/2023

Special inspection requirement — Energy Code Compliance Inspections

Kaijin Liang

08/24/2022

Special inspection requirement — HVAC-R and service water heating system controls

ALFRED SAULO

08/24/2022

Special inspection requirement — Energy Code Compliance Inspections

ALFRED SAULO

08/24/2022

Special inspection requirement — Fire-Resistant Penetrations and Joints

ALFRED SAULO

05/14/2022

Violation issued (ECB, closed)

Construction

05/14/2022

Violation issued (ECB, closed)

Construction

05/14/2022

Violation issued (ECB, closed)

Construction

05/14/2022

Violation issued (ECB, closed)

Unknown

04/08/2022

Permit issued — Plumbing

S00620244-I1-PL

04/01/2022

Inspection — Certified Gas-Gas-Piping-Roughing

Certified

View inspection ↗

04/01/2022

Inspection — Certified Storm Drainage-ST-Piping-Underground

Certified

View inspection ↗

04/01/2022

Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing

Certified

View inspection ↗

02/15/2022

Permit issued — Plumbing

S00620244-I1-PL

12/31/2021

Permit issued — Construction Fence

S00493982-I1-FN

11/26/2021

Violation issued (ECB, closed)

Construction

11/16/2021

Filed — Alteration

PAA P1 filed to submit revised plans to reflect As-built conditions; Relocated 3 fixture bath in cellar, b #: 540189375

S00620244-I1

10/20/2021

Permit issued — Construction Fence

S00493982-I1-FN

10/07/2021

Permit issued — Construction Fence

S00493982-I1-FN

09/10/2021

Violation issued (ECB, closed)

Construction

09/01/2021

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

06/04/2021

Violation issued (ECB, closed)

Construction

04/09/2021

Filed — Alteration

fence filed in conjunction with alt 1 Job #: 540189375 to obtain necessary fence permit for general construction/enlargement.

S00493982-I1

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	Curb Cut	Signed-off	AVS CONSTRUCTION MGMT INC	02/05/2025
DOB NOW	Solar	Signed-off	KAMTECH RESTORATION CORP	12/21/2023
DOB NOW	Plumbing	Signed-off	TOP DOG PLBG & HTG CORP	04/08/2022
DOB NOW	Plumbing	Signed-off	TOP DOG PLBG & HTG CORP	02/15/2022
DOB NOW	Construction Fence	Signed-off	YC DEVELOPERS INC	12/31/2021
DOB NOW	Construction Fence	Signed-off	CHS CONTRACTING	10/20/2021
DOB NOW	Construction Fence	Signed-off	CHS CONTRACTING	10/07/2021
BIS	—	ISSUED	CHS CONTRACTING LLC	02/25/2025
BIS	—	ISSUED	CHS CONTRACTING LLC	07/01/2022
BIS	—	ISSUED	CHS CONTRACTING LLC	02/16/2022
BIS	—	ISSUED	CHS CONTRACTING LLC	01/10/2022
BIS	—	ISSUED	CHS CONTRACTING LLC	10/18/2021
BIS	—	ISSUED	CHS CONTRACTING LLC	10/08/2021

1 project · most recent 12/26/2024

Gas Storm Water/Sanitary

Filed	Status	Contractor	Scope
12/26/2024	Signed-off	TOP DOG PLBG & HTG CORP	Gas, Storm, Water/Sanitary

3 projects · most recent 12/07/2023

General Wiring

Filed	Status	Contractor	Scope
12/07/2023	Complete	BERGER QUALITY ELEC'L CON	—
04/13/2022	Complete	CONTACT ELECTRIC CORP	General Wiring
03/11/2022	Permit Issued	CRESCO ELECTRICAL CORP	1 meters

▾Field Inspections (DOB CAP) — 4

Date	Type	Result	Report
02/07/2025	Pass-Final Curb Cut Non-Directive 14	Pass	View ↗
04/01/2022	Certified Gas-Gas-Piping-Roughing	Certified	View ↗
04/01/2022	Certified Storm Drainage-ST-Piping-Underground	Certified	View ↗
04/01/2022	Certified Water and Sanitary-WS-Sanitary Piping-Roughing	Certified	View ↗

▾Special Inspection Requirements (DOB NOW) — 11

Date	Requirement	Inspector	Role
12/04/2025	HVAC-R and service water heating system controls	ALFRED SAULO	energy_progress
12/04/2025	Energy Code Compliance Inspections	ALFRED SAULO	progress
12/04/2025	Fire-Resistant Penetrations and Joints	ALFRED SAULO	special
12/14/2023	Final	Kaijin Liang	progress
12/14/2023	Air barrier - visual inspection	Kaijin Liang	energy_progress
12/14/2023	Fire-Resistant Penetrations and Joints	Kaijin Liang	special
12/14/2023	Structural Stability – Alterations of existing buildings	Kaijin Liang	special
12/14/2023	Energy Code Compliance Inspections	Kaijin Liang	progress
08/24/2022	HVAC-R and service water heating system controls	ALFRED SAULO	energy_progress
08/24/2022	Energy Code Compliance Inspections	ALFRED SAULO	progress
08/24/2022	Fire-Resistant Penetrations and Joints	ALFRED SAULO	special

▾Documents — 120 on file (BIS + DOB NOW)

▸Plans & Drawings6

▸DOB NOWPlans/Sketch6

08/25/2026S00493982-I1Request digital key ↗

08/25/2026S00620244-P1Request digital key ↗

08/25/2026S00620244-I1Request digital key ↗

Showing 3 of 6 on file for this type

▸Applications & Permits20

▸BISPLAN / WORK APPROVAL APPLICATION14

11/20/2025540189375Open ↗

11/12/2025540189375Open ↗

02/06/2025540189375Open ↗

Showing 3 of 14 on file for this type

▸BISWORK PERMIT APPLICATION4

02/26/2025540189375Open ↗

07/01/2022540189375Open ↗

10/18/2021540189375Open ↗

Showing 3 of 4 on file for this type

▸BISCERTIFICATE OF OCCUPANCY: APPLICATION1

02/07/2023540189375Open ↗

▸BISBPP-5 - Authorization to the Department of Transportation1

07/15/2024540264337Open ↗

▸Zoning, Tax Lot & Property Records4

▸BISZONING EXHIBIT III:DESC. & OWNRSHP.STMNT1

11/06/2020540189375Open ↗

▸BISZONING EXHIBIT III:DESC. & OWNRSHP.STMNT1

03/24/2021540189375Open ↗

▸BISCO OBJ: VERIFY ADDRESS-TOPO STAMP1

02/05/2025540189375Open ↗

▸BISZONING DIAGRAM1

03/31/2021540189375Open ↗

▸Seals & Professional Certifications26

▸DOB NOWProgress Inspector Seal & Signature9

08/28/2026S00620244-P2Open ↗

08/23/2026S00620244-P1Open ↗

Showing 3 of 9 on file for this type

▸DOB NOWDPL-1: Design Professional Seal & Signature6

08/20/2026S01174038-I1Open ↗

08/13/2026S00620244-P2Open ↗

08/13/2026S00977216-I1Open ↗

Showing 3 of 6 on file for this type

▸DOB NOWSpecial Inspector Seal & Signature5

08/28/2026S00620244-P2Open ↗

08/23/2026S00620244-P1Open ↗

08/23/2026S00620244-I1Open ↗

Showing 3 of 5 on file for this type

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY2

06/25/2024540264337Open ↗

11/06/2020540189375Open ↗

▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION1

11/06/2020540189375Open ↗

▸BISPROFESSIONAL CERTIFICATION STATEMENT1

11/06/2020540189375Open ↗

▸BISAPPLICANT OWNER SIGNATURE1

06/25/2024540264337Open ↗

▸BISPROFESSIONAL CERTIFIED CHECKLIST1

03/08/2021540189375Open ↗

▸Trade Schedules & Equipment3

▸BISHEATING SYSTEMS1

05/19/2025540189375Open ↗

▸BISDETECTOR:SMOKE-CERT. OF INSTALLATION1

05/30/2025540189375Open ↗

▸BISDETECTOR:CARBON MONOXIDE-CERT.OF INSTALL1

05/30/2025540189375Open ↗

▸Safety & Tenant Protection1

▸BISSTREET TREE CHECKLIST1

11/06/2020540189375Open ↗

▸Environmental & Asbestos5

▸DOB NOWDEP ACP-5: Asbestos Assessment Report4

08/13/2026S00977216-I1Open ↗

08/13/2026S00620244-I1Open ↗

08/13/2026S00620244-P1Open ↗

Showing 3 of 4 on file for this type

▸BISASBESTOS: CERTIFICATION (DEP ACP5)1

11/06/2020540189375Open ↗

▸Energy Compliance11

▸BISFENESTRATION AIR LEAKAGE1

05/19/2025540189375Open ↗

▸BISAIR SEALING AND INSULATION - VISUAL1

05/19/2025540189375Open ↗

▸BISINTERIOR LIGHTING POWER1

05/19/2025540189375Open ↗

▸BISFENESTRATION U-FACTOR & PRODUCT RATING1

05/19/2025540189375Open ↗

▸BISFENESTRATION AREAS1

05/19/2025540189375Open ↗

▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY1

11/06/2020540189375Open ↗

▸BISNYCECC ANALYSIS1

11/06/2020540189375Open ↗

▸BISINSULATION PLACEMENT & R VALUES1

05/19/2025540189375Open ↗

▸BISLIGHTING IN DWELLING UNITS1

05/19/2025540189375Open ↗

▸BISAS-BUILT ENERGY ANALYSIS (EN2)1

05/28/2025540189375Open ↗

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY FOR ENERGY CODE PROGRESS INSPECTIONS1

11/06/2020540189375Open ↗

▸Inspections & Test Reports16

▸BISTECHNICAL REPORT: RESPONSIBILITY3

11/06/2020540189375Open ↗

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

05/19/2025540189375Open ↗

▸BISCONCRETE - CAST-IN-PLACE1

05/19/2025540189375Open ↗

▸BISSUBSURFACE / SOILS INVESTIGATION (BORINGS/TEST PITS)1

11/06/2020540189375Open ↗

▸BISSTRUCTURAL STABILITY - ALTERATIONS OF EXISTING BUILDINGS1

05/19/2025540189375Open ↗

▸BISFIRE-RESISTANT PENETRATIONS AND JOINTS (FIRESTOP)1

05/19/2025540189375Open ↗

▸BISFIRE-RESISTIVE RATED CONSTRUCTION1

05/19/2025540189375Open ↗

▸BISFOOTING AND FOUNDATION INSPECTION1

05/19/2025540189375Open ↗

▸BISMASONRY1

05/19/2025540189375Open ↗

▸BISSTRUCTURAL STEEL - HIGH STRENGTH BOLTING1

05/19/2025540189375Open ↗

▸BISBPP-9 - Request for Builders Pavement Field Inspection1

07/15/2024540264337Open ↗

▸BISSUBGRADE INSP / SOILS-SITE PREP1

10/17/2023540189375Open ↗

▸BISSOIL REPORT1

11/06/2020540189375Open ↗

▸BISSOIL PERC. TEST-PVT ON-SITE STORM WATER DRAINAGE DISPOSAL SYS & DET. FACL.1

10/17/2023540189375Open ↗

▸Approvals, Objections & Sign-offs8

▸BISSCHEDULE A - OCCUPANCY / USE4

01/31/2025540189375Open ↗

03/29/2021540189375Open ↗

03/25/2021540189375Open ↗

Showing 3 of 4 on file for this type

▸BISCURB CUT (CC) SIGNOFF1

05/28/2025540189375Open ↗

▸BISLETTERS - SUPPORTING DOCUMENTATION1

09/02/2021540189375Open ↗

▸BISSUPERSEDING LETTER1

07/01/2022540189375Open ↗

▸DOB NOWUtility Company Final Acceptance Letter1

08/13/2026S00977216-I1Open ↗

▸Cost, Insurance & Ownership7

▸BISPROJECT-SPECIFIC GL INSURANCE4

02/26/2025540189375Open ↗

07/01/2022540189375Open ↗

10/18/2021540189375Open ↗

Showing 3 of 4 on file for this type

▸BISCOST AFFIDAVIT2

01/31/2025540189375Open ↗

11/06/2020540189375Open ↗

▸BISCOST AFFIDAVIT (FINAL): PW31

05/30/2025540189375Open ↗

▸Filing & Intake Forms3

▸BISEFILING JOB APPLICATION COVER SHEET2

06/25/2024540264337Open ↗

11/06/2020540189375Open ↗

▸BISADDITIONAL INFORMATION1

11/06/2020540189375Open ↗

▸Other Documents8

▸BISPRELIMINARY1

05/19/2025540189375Open ↗

▸BISSUSTAINABLE ROOF ZONE FORM1

11/06/2020540189375Open ↗

▸BISBPP - DOT Builders Pavement Unit Waiver Request Form1

07/15/2024540264337Open ↗

▸BISCONSTRUCTION - SUPPORTING DOCUMENTATION1

10/18/2021540189375Open ↗

▸BISPROTECTION OF EXPOSED FOUNDATION INSULATION1

05/19/2025540189375Open ↗

▸BISBPP - SUPPORTING DOCUMENTATION1

07/15/2024540264337Open ↗

▸BISPLOT DIAGRAM1

03/05/2021540189375Open ↗

▸BISPVT ON-SITE STORM WATER DISPOSAL SYSTEMS & DETENTION FACL., INSTALLATION1

10/17/2023540189375Open ↗