C Squared Systems, LLC — NYC General Contractor: DOB Permits, Filings & Buildings

Contractor

C SQUARED SYSTEMS, LLC

General Contractor

MANHATTAN · 8STATEN ISLAND · 1QUEENS · 1

Claim this page

11 buildings

Total Filings

Projects on File

Buildings Worked

Projects w/ Open Permits

General Contractor

Primary Trade

Activity

Projects by first filing month11 projects all-time

bars = month · line = 3-mo average

Portfolio status

Browse projects →

Signed off19%

Other status1091%

By project type

Alteration1

Most active buildings

All buildings →

110 MAIDEN LANEMANHATTAN · latest 11/13/2014

1 projects

101 AVENUE OF THE AMERMANHATTAN · latest 09/25/2017

1 projects

649 5 AVENUEMANHATTAN · latest 07/20/2017

1 projects

540 PARK AVENUEMANHATTAN · latest 10/22/2014

1 projects

1301 YORK AVENUEMANHATTAN · latest 11/17/2017

1 projects

640 8 AVENUEMANHATTAN · latest 02/22/2018

1 projects

Key relationships

Everyone →

Design firms

JAMES H. FAHEY

1 projects

Filing representatives

CONSTRUCTION PERMIT SERVICES

1 projects

Owners

TACONIC INVESTMENT PARTNERS LLC

1 projects

Most recent projects

All projects →

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
M00039969 ↗	525 WEST 52 STREET MANHATTAN	Alteration	Signed-off	10/31/2018	07/20/2019	Design JAMES H. FAHEY Owner TACONIC INVESTMENT PARTNERS Filer CONSTRUCTION PERMIT SERVICES	Installation of two Verizon GPS units on the roof. All in conformance with TPPN 5/98. No change in use, occupancy, or egress.
123227445BIS	640 8 AVENUE MANHATTAN	—	ISSUED	02/14/2018	02/22/2018	—	OT, SP
123100946BIS	1301 YORK AVENUE MANHATTAN	—	ISSUED	11/17/2017	11/17/2017	—	OT
123143981BIS	51 ASTOR PLACE MANHATTAN	—	ISSUED	11/14/2017	11/14/2017	—	OT
123108984BIS	101 AVENUE OF THE AMER MANHATTAN	—	ISSUED	09/25/2017	09/25/2017	—	OT
122929698BIS	649 5 AVENUE MANHATTAN	—	ISSUED	07/20/2017	07/20/2017	—	OT

Counts cover all 11 projects (1 DOB NOW + 10 legacy BIS). Dated by first filing; BIS projects by first permit issuance.

Who this entity's projects were filed with. Top 25 per group by shared jobs.

Name	Projects together	Most recent
JAMES H. FAHEY	1	10/31/2018

Who this entity's projects were filed with. Top 25 per group by shared jobs.

Name	Projects together	Most recent
TACONIC INVESTMENT PARTNERS LLC	1	10/31/2018

Who this entity's projects were filed with. Top 25 per group by shared jobs.

Name	Projects together	Most recent
CONSTRUCTION PERMIT SERVICES	1	10/31/2018

1 DOB NOW project + 10 legacy BIS projects, anchored the same way as Buildings Worked. Status is the project's permit state today: open = at least one permit currently issued. BIS projects show their raw permit status and are not counted as open.

All 11Signed off 1Other status 10

11 projects

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
M00039969 ↗	525 WEST 52 STREET MANHATTAN	Alteration	Signed-off	10/31/2018	07/20/2019	Design JAMES H. FAHEY Owner TACONIC INVESTMENT PARTNERS Filer CONSTRUCTION PERMIT SERVICES	Installation of two Verizon GPS units on the roof. All in conformance with TPPN 5/98. No change in use, occupancy, or egress.
123227445BIS	640 8 AVENUE MANHATTAN	—	ISSUED	02/14/2018	02/22/2018	—	OT, SP
123100946BIS	1301 YORK AVENUE MANHATTAN	—	ISSUED	11/17/2017	11/17/2017	—	OT
123143981BIS	51 ASTOR PLACE MANHATTAN	—	ISSUED	11/14/2017	11/14/2017	—	OT
123108984BIS	101 AVENUE OF THE AMER MANHATTAN	—	ISSUED	09/25/2017	09/25/2017	—	OT
122929698BIS	649 5 AVENUE MANHATTAN	—	ISSUED	07/20/2017	07/20/2017	—	OT
520212644BIS	35 HYATT STREET STATEN ISLAND	—	ISSUED	01/13/2015	01/13/2015	—	OT
421056421BIS	3316 WOODSIDE AVENUE QUEENS	—	ISSUED	11/26/2014	11/26/2014	—	OT
122119625BIS	110 MAIDEN LANE MANHATTAN	—	ISSUED	11/13/2014	11/13/2014	—	OT
122098443BIS	540 PARK AVENUE MANHATTAN	—	ISSUED	10/22/2014	10/22/2014	—	OT
321214397BIS	437 DE WITT AVENUE BROOKLYN	—	ISSUED	10/22/2014	10/22/2014	—	OT

Click a row for this entity's own projects, plans and documents at that building.

Building	Filings	Most Recent
525 WEST 52 STREET ↗	1	07/08/2026

▾Documents — 178 on file (BIS + DOB NOW)

▸Plans & Drawings1

▸DOB NOWPlans/Sketch1

08/15/2026M00039969-I1 · 525 WEST 52 STREETRequest digital key ↗

▸Applications & Permits29

▸BISPLAN / WORK APPROVAL APPLICATION16

06/18/2025421056421 · 3316 WOODSIDE AVENUEOpen ↗

03/12/2019123108984 · 101 AVENUE OF THE AMEROpen ↗

10/10/2018123108984 · 101 AVENUE OF THE AMEROpen ↗

Showing 3 of 16 on file for this type

▸BISWORK PERMIT APPLICATION13

11/20/2017123100946 · 1301 YORK AVENUEOpen ↗

11/14/2017123143981 · 51 ASTOR PLACEOpen ↗

07/31/2017122929698 · 649 5 AVENUEOpen ↗

Showing 3 of 13 on file for this type

▸Seals & Professional Certifications28

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION25

07/01/2019123227445 · 640 8 AVENUEOpen ↗

04/15/2019123108984 · 101 AVENUE OF THE AMEROpen ↗

11/27/2018123227445 · 640 8 AVENUEOpen ↗

Showing 3 of 25 on file for this type

▸BISPROFESSIONAL CERTIFICATION STATEMENT1

12/05/2014421056421 · 3316 WOODSIDE AVENUEOpen ↗

▸BISPROFESSIONAL CERTIFIED CHECKLIST1

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 1 on file for this type

▸DOB NOWDPL-1: Design Professional Seal & Signature1

09/06/2026M00039969-I1 · 525 WEST 52 STREETOpen ↗

▸Trade Schedules & Equipment5

▸BISEQUIPMENT USE PERMITS2

04/15/2019123108984 · 101 AVENUE OF THE AMEROpen ↗

11/27/2018123227445 · 640 8 AVENUEOpen ↗

▸BISEQUIPMENT USE APPLICATION/PERMIT2

04/15/2019123108984 · 101 AVENUE OF THE AMEROpen ↗

11/27/2018123227445 · 640 8 AVENUEOpen ↗

▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE1

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 1 on file for this type

▸Safety & Tenant Protection1

▸DOB NOWHPD-2: Clinton Special District Anti-Harassment Checklist1

08/15/2026M00039969-I1 · 525 WEST 52 STREETOpen ↗

▸Environmental & Asbestos13

▸BISASBESTOS: CERTIFICATION (DEP ACP5)10

11/06/2017123143981 · 51 ASTOR PLACEOpen ↗

07/26/2017123100946 · 1301 YORK AVENUEOpen ↗

12/05/2014421056421 · 3316 WOODSIDE AVENUEOpen ↗

Showing 3 of 10 on file for this type

▸DOB NOWOER: Notice of Satisfaction1

08/15/2026M00039969-I1 · 525 WEST 52 STREETOpen ↗

▸DOB NOWOER: Notice to Proceed1

08/15/2026M00039969-I1 · 525 WEST 52 STREETOpen ↗

▸DOB NOWDEP ACP-5: Asbestos Assessment Report1

08/15/2026M00039969-I1 · 525 WEST 52 STREETOpen ↗

▸Energy Compliance34

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS21

07/01/2019123227445 · 640 8 AVENUEOpen ↗

04/15/2019123108984 · 101 AVENUE OF THE AMEROpen ↗

11/27/2018123227445 · 640 8 AVENUEOpen ↗

Showing 3 of 21 on file for this type

▸BISAS-BUILT ENERGY ANALYSIS8

07/30/2020122098443 · 540 PARK AVENUEOpen ↗

04/15/2019123108984 · 101 AVENUE OF THE AMEROpen ↗

11/27/2018123227445 · 640 8 AVENUEOpen ↗

Showing 3 of 8 on file for this type

▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY2

09/22/2025421056421 · 3316 WOODSIDE AVENUEOpen ↗

07/30/2020122098443 · 540 PARK AVENUEOpen ↗

▸BISTR8: Energy Code Progress Inspections1

03/13/2015321214397 · 439 DE WITT AVENUEOpen ↗

▸BISENERGY CODE COMPLIANCE INSPECTIONS1

09/30/2025421056421 · 3316 WOODSIDE AVENUEOpen ↗

▸BISAS-BUILT ENERGY ANALYSIS (EN2)1

09/22/2025421056421 · 3316 WOODSIDE AVENUEOpen ↗

▸Inspections & Test Reports2

▸BISTECHNICAL REPORT: RESPONSIBILITY2

09/22/2025421056421 · 3316 WOODSIDE AVENUEOpen ↗

07/30/2020122098443 · 540 PARK AVENUEOpen ↗

▸Approvals, Objections & Sign-offs16

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST10

10/02/2025421056421 · 3316 WOODSIDE AVENUEOpen ↗

07/30/2020122098443 · 540 PARK AVENUEOpen ↗

07/01/2019123227445 · 640 8 AVENUEOpen ↗

Showing 3 of 10 on file for this type

▸BISADMINISTRATIVE OBJECTIONS3

12/05/2014421056421 · 3316 WOODSIDE AVENUEOpen ↗

11/25/2014520212644 · 35 HYATT STREETOpen ↗

07/29/2014321214397 · 439 DE WITT AVENUEOpen ↗

▸BISFINAL1

09/22/2025421056421 · 3316 WOODSIDE AVENUEOpen ↗

▸BISLETTERS - SUPPORTING DOCUMENTATION1

04/16/2018122929698 · 649 5 AVENUEOpen ↗

▸BISLANDMARKS APPROVAL1

02/15/2017122929698 · 649 5 AVENUEOpen ↗

▸Cost, Insurance & Ownership20

▸BISCOST AFFIDAVIT20

04/15/2019123108984 · 101 AVENUE OF THE AMEROpen ↗

11/27/2018123227445 · 640 8 AVENUEOpen ↗

Showing 3 of 20 on file for this type

▸Filing & Intake Forms27

▸BISEFILING COVER SHEET11

11/06/2017123143981 · 51 ASTOR PLACEOpen ↗

07/26/2017123100946 · 1301 YORK AVENUEOpen ↗

12/05/2014421056421 · 3316 WOODSIDE AVENUEOpen ↗

Showing 3 of 11 on file for this type

▸BISBOROUGH INTAKE FORM9

07/01/2019123227445 · 640 8 AVENUEOpen ↗

04/15/2019123108984 · 101 AVENUE OF THE AMEROpen ↗

03/12/2019123108984 · 101 AVENUE OF THE AMEROpen ↗

Showing 3 of 9 on file for this type

▸BISADDITIONAL INFORMATION7

03/29/2019123108984 · 101 AVENUE OF THE AMEROpen ↗

03/04/2019123108984 · 101 AVENUE OF THE AMEROpen ↗

08/06/2018123227445 · 640 8 AVENUEOpen ↗

Showing 3 of 7 on file for this type

▸Other Documents2

▸DOB NOWMultiple Dwelling Special District Feasibility of Government Funded Rehabilitation1

08/15/2026M00039969-I1 · 525 WEST 52 STREETOpen ↗

▸DOB NOWMultiple Dwelling Special District Notice to Community Board1

08/15/2026M00039969-I1 · 525 WEST 52 STREETOpen ↗

Claim this page

Claim submitted