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Contractor
CORNERSTONE CONTRACTING*
General Contractor
7 projects with open permitsMANHATTAN · 12BROOKLYN · 4BRONX · 1
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11 buildings
61
Total Filings
17
Projects on File
11
Buildings Worked
7
Projects w/ Open Permits
General Contractor
Primary Trade
Activity
Projects by first filing month17 projects all-time
0123May '21 · 2Jul '21 · 2Oct '21 · 1May '22 · 2Sep '22 · 1Apr '23 · 2May '23 · 1Jun '23 · 1Mar '24 · 2Apr '24 · 1Jan '25 · 22022202320242025
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Open permit741%
Signed off1059%
By project type
Alteration16
Alteration CO1
Most active buildings
All buildings →
162 WEST 123 STREETMANHATTAN · latest 02/14/2022
3 projects
14 EAST 4 STREETMANHATTAN · 2 open · latest 09/16/2025
2 projects
460 PARK AVENUEMANHATTAN · latest 07/29/2025
2 projects
325 EAST 80 STREETMANHATTAN · 1 open · latest 10/19/2022
2 projects
239 55 STREETBROOKLYN · 1 open · latest 05/16/2023
2 projects
772 BROADWAYMANHATTAN · latest 10/28/2022
1 projects
Key relationships
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Filing representatives
4 projects
2 projects
1 projects
1 projects
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00879132 ↗251 WARREN STREET
BROOKLYN
Alteration COPermit Issued06/05/202307/23/2026
Design HANINGTON ENGINEERING CONSULTANTS
Filer J.A. EXPEDITING, LLC
Underpinning of Adjacent 1-Story Extension
M00780716 ↗14 EAST 4 STREET
MANHATTAN
AlterationPermit Issued03/29/202409/16/2025
Design EAB ARCHITECTURAL DESIGNS, PLLC
Filer BUILDING BROTHERS INC.
Replace plumbing fixtures on existing rough-in at unit 507 on the 5th floor.
M01131526 ↗460 PARK AVENUE
MANHATTAN
AlterationSigned-off01/16/202507/29/2025
Design SKIDMORE OWINGS & MERRILL LLP
Filer A1 EXPEDITING SERVICE CORP.
Removal & installation of interior non load bearing partitions and related finishes. No change in use, egress or occupancy
M01131513 ↗460 PARK AVENUE
MANHATTAN
AlterationSigned-off01/17/202507/25/2025
Design COSENTINI ASSOCIATES
Filer A1 EXPEDITING SERVICE CORP.
alterations to existing mechanical systems as per plans filed herewith.
X00902238 ↗256 WEST 260 STREET
BRONX
AlterationPermit Issued04/29/202405/29/2025
Design THOMAS J. CURRO ARCHITECT, PC
INTERIOR ALTERATIONS TO BASEMENT, FIRST AND SECOND FLOORS. NO CHANGE IN USE, EGRESS OR OCCUPANCY. PLUMBING WORK FILED UNDER SEPARATE DOBNOW …
M00587382 ↗14 EAST 4 STREET
MANHATTAN
AlterationPermit Issued03/29/202409/04/2024
Design EAB ARCHITECTURAL DESIGNS, PLLC
INTERIOR RENOVATION TO UNIT 605 ON THE 6TH FLOOR. WORK TO INCLUDE MINOR PARTITION WORK AND FINISHES. NO CHANGE IN USE, EGRESS OR OCCUPANCY U…
Counts cover all 17 projects (17 DOB NOW). 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.
NameProjects togetherMost recent
JASON KIM301/12/2022
EAB ARCHITECTURAL DESIGNS, PLLC206/11/2024
TMF ELEC'L CONTR. INC.205/31/2022
ABEJA ENGINEERING PLLC107/01/2021
AM DESIGNS LLC109/29/2022
COSENTINI ASSOCIATES101/17/2025
HANINGTON ENGINEERING CONSULTANTS103/27/2026
KENDALL ENGINEERING PC103/27/2026
MARTOS ENGINEERING107/07/2021
RODNEY D. GIBBLE CONSULTING ENGINEE104/19/2023
SKIDMORE OWINGS & MERRILL LLP106/09/2026
SOYOUNG KIM104/14/2023
STRUCTURES & FOUNDATIONS PC103/27/2026
SW ENGINEERING COMPANY105/12/2023
Studio Otto Architecture103/27/2026
THOMAS J. CURRO ARCHITECT, PC108/12/2025
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
AJC PLUMBING & HTG CORP203/27/2026
GRANDEUR HILLS GROUP INC103/27/2026
GREGG NY PLUMBING, INC103/27/2026
ODYSSEY PLMBG & HTNG CORP106/11/2024
RITE WAY FIRE SPINKLER CORP103/27/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
162 WEST 123RD STREET, LLC404/19/2023
HOPE CHURCH NYC105/12/2023
STEWART TENANTS CORP109/29/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
ADAM MAISER409/29/2022
A1 EXPEDITING SERVICE CORP.206/09/2026
BOYD CONSULTING, INC105/12/2023
BUILDING BROTHERS INC.106/11/2024
J.A. EXPEDITING, LLC103/27/2026
JANCO BUILDING CONSULTANTS, LLC.104/19/2023
17 DOB NOW 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 17Open permit 7Signed off 10
Any typeAlteration 16Alteration CO 1
17 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00879132 ↗251 WARREN STREET
BROOKLYN
Alteration COPermit Issued06/05/202307/23/2026
Design HANINGTON ENGINEERING CONSULTANTS
Filer J.A. EXPEDITING, LLC
Underpinning of Adjacent 1-Story Extension
M00780716 ↗14 EAST 4 STREET
MANHATTAN
AlterationPermit Issued03/29/202409/16/2025
Design EAB ARCHITECTURAL DESIGNS, PLLC
Filer BUILDING BROTHERS INC.
Replace plumbing fixtures on existing rough-in at unit 507 on the 5th floor.
M01131526 ↗460 PARK AVENUE
MANHATTAN
AlterationSigned-off01/16/202507/29/2025
Design SKIDMORE OWINGS & MERRILL LLP
Filer A1 EXPEDITING SERVICE CORP.
Removal & installation of interior non load bearing partitions and related finishes. No change in use, egress or occupancy
M01131513 ↗460 PARK AVENUE
MANHATTAN
AlterationSigned-off01/17/202507/25/2025
Design COSENTINI ASSOCIATES
Filer A1 EXPEDITING SERVICE CORP.
alterations to existing mechanical systems as per plans filed herewith.
X00902238 ↗256 WEST 260 STREET
BRONX
AlterationPermit Issued04/29/202405/29/2025
Design THOMAS J. CURRO ARCHITECT, PC
INTERIOR ALTERATIONS TO BASEMENT, FIRST AND SECOND FLOORS. NO CHANGE IN USE, EGRESS OR OCCUPANCY. PLUMBING WORK FILED UNDER SEPARATE DOBNOW …
M00587382 ↗14 EAST 4 STREET
MANHATTAN
AlterationPermit Issued03/29/202409/04/2024
Design EAB ARCHITECTURAL DESIGNS, PLLC
INTERIOR RENOVATION TO UNIT 605 ON THE 6TH FLOOR. WORK TO INCLUDE MINOR PARTITION WORK AND FINISHES. NO CHANGE IN USE, EGRESS OR OCCUPANCY U…
M00868830 ↗109 EAST 31 STREET
MANHATTAN
AlterationPermit Issued05/12/202305/25/2023
Design SW ENGINEERING COMPANY
Owner HOPE CHURCH NYC
Filer BOYD CONSULTING, INC
Brick replacement, brick repointing, stucco replacement, no change to use, egress or occupancy.
B00855336 ↗239 55 STREET
BROOKLYN
AlterationPermit Issued04/19/202305/16/2023
Design RODNEY D. GIBBLE CONSULTING ENGINEE
Owner 162 WEST 123RD STREET, LLC
Filer JANCO BUILDING CONSULTANTS, LLC.
PROVIDE STRUCTURAL WORK IN CONJUNCTION WITH FACADE WORK AS PER PLANS FILED HEREWITH. NO CHANGE TO ZONING, USE, EGRESS OR OCCUPANCY.
B00855285 ↗239 55 STREET
BROOKLYN
AlterationSigned-off04/14/202305/11/2023
Design SOYOUNG KIM
PROPOSE TO REPAIR AND REPLACE THE REAR FACADE AS PER PLANS FILED HEREWITH. STRUCTURAL WORK TO BE FILED UNDER A SEPARATE APPLICATION. NO CHAN…
M00790327 ↗772 BROADWAY
MANHATTAN
AlterationSigned-off09/29/202210/28/2022
Design AM DESIGNS LLC
Owner STEWART TENANTS CORP. C/O FIRSTSERV
Filer ADAM MAISER
INTERIOR RENOVATION OF APT. 15S INCLUDES DEMOLITION OF A NON-STRUCTURAL PARTITION IN THE KITCHEN AND GENERAL CONSTRUCTION AS PER PLANS FILED…
M00666601 ↗325 EAST 80 STREET
MANHATTAN
AlterationPermit Issued05/31/202210/19/2022
Design TMF ELEC'L CONTR. INC.
RENOVATION OF EXISTING APARTMENT WITH INTERIOR PARTITIONS AND PLUMBING AS PER PLAS. NO CHANGE OF USE, OCCUPANCY OR EGRESS
M00666545 ↗325 EAST 80 STREET
MANHATTAN
AlterationSigned-off05/31/202206/10/2022
Design TMF ELEC'L CONTR. INC.
RENOVATION OF EXISTING APARTMENT WITH INTERIOR PARTITIONS AND PLUMBING AS PER PLAS. NO CHANGE OF USE, OCCUPANCY OR EGRESS
B00582438 ↗130 CLINTON STREET
BROOKLYN
AlterationSigned-off10/01/202102/14/2022
Design JASON KIM
Install of non-bearing interior partition wall. No work proposed on exterior. No change to use, egress, and occupancy.
M00494428 ↗162 WEST 123 STREET
MANHATTAN
AlterationSigned-off07/07/202102/14/2022
Design MARTOS ENGINEERING
Owner 162 WEST 123RD STREET, LLC
Filer ADAM MAISER
Structural work in conjunction with renovation of existing apartment residence on floors 001-004, BAS, and ROF. Architectural work. There is…
M00497237 ↗162 WEST 123 STREET
MANHATTAN
AlterationSigned-off05/17/202102/14/2022
Design JASON KIM
Owner 162 WEST 123RD STREET, LLC
Filer ADAM MAISER
INTERIOR AND EXTERIOR RENOVATION OF EXISTING APARTMENT RESIDENCE. ARCHITECTURAL WORK ONLY. THERE IS TO BE NO CHANGE OF USE, OCCUPANCY, OR EG…
M00494400 ↗162 WEST 123 STREET
MANHATTAN
AlterationSigned-off07/01/202107/02/2021
Design ABEJA ENGINEERING PLLC
Owner 162 WEST 123RD STREET, LLC
Filer ADAM MAISER
Install new electric split system ductless HVAC units. Exterior condenser heat pumps located at the roof level on dunnage beams(CONST.# M004…
M00516208 ↗258 ST NICHOLAS AVENUE
MANHATTAN
AlterationSigned-off05/13/202105/25/2021
Design JASON KIM
Install of non-bearing interior partition wall at Living Room and new recessed lights. No work proposed on exterior.
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
14 EAST 4 STREET ↗707/08/2026
162 WEST 123 STREET ↗1407/08/2026
239 55 STREET ↗407/08/2026
772 BROADWAY ↗107/08/2026
251 WARREN STREET ↗607/08/2026
460 PARK AVENUE ↗804/09/2026
256 WEST 260 STREET ↗603/21/2026
109 EAST 31 STREET ↗303/21/2026
325 EAST 80 STREET ↗603/21/2026
258 ST NICHOLAS AVENUE ↗303/21/2026
130 CLINTON STREET ↗303/21/2026
▾Documents — 261 on file (BIS + DOB NOW)
▸Plans & Drawings45
▸DOB NOWPlans/Sketch45
09/03/2026M00516208-I1 · 258 ST NICHOLAS AVENUERequest digital key ↗
09/03/2026M00494400-I1 · 162 WEST 123 STREETRequest digital key ↗
09/03/2026M00494428-I1 · 162 WEST 123 STREETRequest digital key ↗
Showing 3 of 45 on file for this type
▸Applications & Permits8
▸DOB NOWLPC Approval/Permit8
09/03/2026M00494428-I1 · 162 WEST 123 STREETOpen ↗
09/03/2026M00497237-P1 · 162 WEST 123 STREETOpen ↗
09/03/2026M00497237-I1 · 162 WEST 123 STREETOpen ↗
Showing 3 of 8 on file for this type
▸Zoning, Tax Lot & Property Records9
▸DOB NOWZD1: DOB Zoning Diagram5
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 5 on file for this type
▸DOB NOWZoning Exhibit form (1-5)4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸Seals & Professional Certifications132
▸DOB NOWProgress Inspector Seal & Signature50
09/18/2026M00516208-I1 · 258 ST NICHOLAS AVENUEOpen ↗
09/18/2026M00516208-I1 · 258 ST NICHOLAS AVENUEOpen ↗
09/02/2026B00855336-I1 · 239 55 STREETOpen ↗
Showing 3 of 50 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature46
09/25/2026M00780716-S1 · 14 EAST 4 STREETOpen ↗
09/02/2026B00855336-I1 · 239 55 STREETOpen ↗
09/02/2026B00855336-I1 · 239 55 STREETOpen ↗
Showing 3 of 46 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature36
09/03/2026M00516208-I1 · 258 ST NICHOLAS AVENUEOpen ↗
09/03/2026M00494428-I1 · 162 WEST 123 STREETOpen ↗
09/03/2026M00497237-I1 · 162 WEST 123 STREETOpen ↗
Showing 3 of 36 on file for this type
▸Trade Schedules & Equipment4
▸DOB NOWDEP: Sewer Certification (Sanitary/Storm)4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸Safety & Tenant Protection6
▸DOB NOWStreet Tree Checklist5
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 5 on file for this type
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Environmental & Asbestos25
▸DOB NOWDEP ACP-5: Asbestos Assessment Report13
09/03/2026M00497237-I1 · 162 WEST 123 STREETOpen ↗
09/03/2026M00497237-P1 · 162 WEST 123 STREETOpen ↗
09/01/2026B00582438-I1 · 130 CLINTON STREETOpen ↗
Showing 3 of 13 on file for this type
▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form12
09/03/2026M00494428-I1 · 162 WEST 123 STREETOpen ↗
09/02/2026M00666601-I1 · 325 EAST 80 STREETOpen ↗
09/02/2026M00666545-I1 · 325 EAST 80 STREETOpen ↗
Showing 3 of 12 on file for this type
▸Energy Compliance1
▸DOB NOWEN2: As Built Energy Analysis.1
09/03/2026M00516208-I1 · 258 ST NICHOLAS AVENUEOpen ↗
▸Filing & Intake Forms2
▸DOB NOWAI1 Form2
08/20/2026M01131526-P2 · 460 PARK AVENUEOpen ↗
08/20/2026M01131526-I1 · 460 PARK AVENUEOpen ↗
▸Other Documents29
▸DOB NOWPlot Diagram9
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 9 on file for this type
▸DOB NOWSite Survey: Initial5
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 5 on file for this type
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone5
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 5 on file for this type
▸DOB NOWProperty Ownership Certification5
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 5 on file for this type
▸DOB NOWLoft Board Certificate3
08/13/2026M00780716-I1 · 14 EAST 4 STREETOpen ↗
08/13/2026M00780716-S1 · 14 EAST 4 STREETOpen ↗
08/13/2026M00587382-I1 · 14 EAST 4 STREETOpen ↗
▸DOB NOWAdjoining Owners Notification1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸DOB NOWPARTIAL DEMO: 10-DAY Notice1
08/13/2026B00855336-I1 · 239 55 STREETOpen ↗