The Dalton School — Named in NYC Filed Documents: Projects, Floors & Buildings

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
M01431905	200 EAST 87TH STREET MANHATTAN	Alteration	Permit Issued	07/21/2026	10/16/2026	Design 1100ARCHITECT PC Contractor ARCHSTONE BUILDERS LLC Filer WILLIAM VITACCO ASSOCIATES	Filing for new partition and doors, finish work at the subcellar floor. No change to use, egress, or occupancy.
M01210190	108 EAST 89TH STREET MANHATTAN	Alteration	Permit Issued	05/20/2025	07/28/2026	Design COSENTINI ASSOCIATES Contractor ARCHSTONE BUILDERS LLC Filer WILLIAM VITACCO ASSOCIATES	Filing for sprinkler work at the 5th floor. No change to use, egress, or occupancy.
M01388937	108 EAST 89TH STREET MANHATTAN	Alteration	Permit Issued	04/30/2026	04/30/2026	Design TOHFAZ UDDIN PE PC Contractor SPRING SCAFFOLDING LLC Filer SPRING SCAFFOLDING LLC	INSTALLATION OF TEMPORARY PLYWOOD FENCE AS PER PLAN. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
M01357057	108 EAST 89TH STREET MANHATTAN	Alteration	Permit Issued	02/23/2026	03/02/2026	Design 1100ARCHITECT PC Contractor ARCHSTONE BUILDERS LLC Filer DVA Advisors	Removal and replacement of interior finishes at 1st and 2nd floors
M01228289	200 EAST 87TH STREET MANHATTAN	Alteration	Signed-off	05/22/2025	12/01/2025	Design COSENTINI ASSOCIATES Contractor ARCHSTONE BUILDERS LLC Filer WILLIAM VITACCO ASSOCIATES	Plumbing work on the sub-cellar through 2nd floor. No change to use, egress or occupancy.
M01050895	108 EAST 89TH STREET MANHATTAN	Alteration	Signed-off	06/04/2024	07/11/2024	Design 1100ARCHITECT PC Contractor ARCHSTONE BUILDERS LLC Filer WILLIAM VITACCO ASSOCIATES	Filing for the installation of new PTAC units at the 1st floor. No change to use, egress, or occupancy.

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.

Name	Projects together	Most recent
Cosentini Associates	8	10/08/2026
1100Architect	7	10/08/2026
Ashraf	2	06/15/2023
Guth DeConzo Consulting Engineers	1	02/04/2022
New York Engineering Associates	1	07/13/2021
Tohfaz Uddin PE	1	10/09/2026

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

Name	Projects together	Most recent
Archstone Builders	7	10/08/2026
J & G Construction Services	2	06/15/2023
PSI Partners	2	10/08/2026
Zerega Contracting	2	10/08/2026
A & F Fire Protection Co	1	10/21/2022
A.S. Construction & Development	1	10/21/2022
Air Systems Maintenance I	1	02/04/2022
C C Controlled Combustion	1	07/13/2021
CM Plumbing	1	08/10/2021
P & D Mechanical	1	08/10/2021
Southbend Construction	1	10/21/2022
Spring Scaffolding	1	10/09/2026

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

Name	Projects together	Most recent
J & G Construction Services	1	06/15/2023

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

Name	Projects together	Most recent
William Vitacco Associates	8	10/08/2026
DVA Advisors	1	03/26/2026
New York Engineering	1	07/13/2021
Spring Scaffolding	1	10/09/2026

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

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
M01431905	200 EAST 87TH STREET MANHATTAN	Alteration	Permit Issued	07/21/2026	10/16/2026	Design 1100ARCHITECT PC Contractor ARCHSTONE BUILDERS LLC Filer WILLIAM VITACCO ASSOCIATES	Filing for new partition and doors, finish work at the subcellar floor. No change to use, egress, or occupancy.
M01210190	108 EAST 89TH STREET MANHATTAN	Alteration	Permit Issued	05/20/2025	07/28/2026	Design COSENTINI ASSOCIATES Contractor ARCHSTONE BUILDERS LLC Filer WILLIAM VITACCO ASSOCIATES	Filing for sprinkler work at the 5th floor. No change to use, egress, or occupancy.
M01388937	108 EAST 89TH STREET MANHATTAN	Alteration	Permit Issued	04/30/2026	04/30/2026	Design TOHFAZ UDDIN PE PC Contractor SPRING SCAFFOLDING LLC Filer SPRING SCAFFOLDING LLC	INSTALLATION OF TEMPORARY PLYWOOD FENCE AS PER PLAN. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
M01357057	108 EAST 89TH STREET MANHATTAN	Alteration	Permit Issued	02/23/2026	03/02/2026	Design 1100ARCHITECT PC Contractor ARCHSTONE BUILDERS LLC Filer DVA Advisors	Removal and replacement of interior finishes at 1st and 2nd floors
M01228289	200 EAST 87TH STREET MANHATTAN	Alteration	Signed-off	05/22/2025	12/01/2025	Design COSENTINI ASSOCIATES Contractor ARCHSTONE BUILDERS LLC Filer WILLIAM VITACCO ASSOCIATES	Plumbing work on the sub-cellar through 2nd floor. No change to use, egress or occupancy.
M01050895	108 EAST 89TH STREET MANHATTAN	Alteration	Signed-off	06/04/2024	07/11/2024	Design 1100ARCHITECT PC Contractor ARCHSTONE BUILDERS LLC Filer WILLIAM VITACCO ASSOCIATES	Filing for the installation of new PTAC units at the 1st floor. No change to use, egress, or occupancy.
M00894104	200 EAST 87TH STREET MANHATTAN	Alteration CO	Permit Issued	09/07/2023	05/17/2024	Design 1100ARCHITECT PC Contractor ARCHSTONE BUILDERS LLC Filer WILLIAM VITACCO ASSOCIATES	Conversion of existing retail space to educational use. Work at the cellar, 1st, and 2nd floor includes removal and installation of interior…
M00889373	51 EAST 91ST STREET MANHATTAN	Alteration	Permit Issued	06/15/2023	06/16/2023	Design ASHRAF CORP Contractor J & G CONSTRUCTION SVCS	INSTALLATION OF TEMPORARY HEAVY DUTY SIDEWALK SHED AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY. SIDEWALK SHED SHALL COMPLY WITH CHAP…
M00889381	51 EAST 91ST STREET MANHATTAN	Alteration	Permit Issued	06/15/2023	06/16/2023	Design ASHRAF CORP Owner J & G CONSTRUCTION SRVCS Contractor J & G CONSTRUCTION SVCS	PROPOSED INSTALLATION OF TEMPORARY PIPE SCAFFOLD AS PER PLANS. WORK SHALL COMPLY WITH CHAPTER #33 OF THE NYC BUILDING CODE. NO CHANGE IN USE…
M00740422	200 EAST 87TH STREET MANHATTAN	Alteration	Signed-off	06/14/2022	08/22/2022	Design 1100ARCHITECT PC Contractor SOUTHBEND CONSTR CORP Filer WILLIAM VITACCO ASSOCIATES	Filing for the renovation of the retail space at the cellar and 2nd floor. Work includes removal and installation of interior non load beari…
M00741353	200 EAST 87TH STREET MANHATTAN	Alteration	Signed-off	06/14/2022	08/13/2022	Design COSENTINI ASSOCIATES Contractor A.S. CONSTR. & DEVELOPMEN Filer WILLIAM VITACCO ASSOCIATES	Filing for mechanical work at the cellar and 2nd floor. No change to use, egress, or occupancy.
M00747091	200 EAST 87TH STREET MANHATTAN	Alteration	Signed-off	06/14/2022	08/05/2022	Design COSENTINI ASSOCIATES Contractor ADVANCED AUTO SPR.CO.,INC Filer WILLIAM VITACCO ASSOCIATES	Filing for sprinkler modification at the cellar and 2nd floor. No change to use, egress, or occupancy.
M00258417	51 EAST 91ST STREET MANHATTAN	Alteration	Signed-off	04/17/2020	07/27/2022	Design Guth DeConzo Consulting Engineers Contractor AIR SYSTEMS MAINTENANCE I Filer WILLIAM VITACCO ASSOCIATES	Mechanical work as shown on plans.
M00545408	51 EAST 91ST STREET MANHATTAN	Alteration	Signed-off	07/13/2021	07/21/2021	Design NEW YORK ENGINEERING ASSOC., P.C. Contractor C C CONTROLLED COMBUSTION Filer NEW YORK ENGINEERING	INSTALL CHIMNEY LINER
M00408862	200 EAST 87TH STREET MANHATTAN	Alteration	Signed-off	10/15/2020	02/11/2021	Design COSENTINI ASSOCIATES Contractor P & D MECHANICAL CORP Filer WILLIAM VITACCO ASSOCIATES	Filing for modification of an existing sprinkler system on the Cellar and 2nd floor. No change to use, egress, or occupancy.
M00408854	200 EAST 87TH STREET MANHATTAN	Alteration	Signed-off	10/15/2020	02/03/2021	Design COSENTINI ASSOCIATES Contractor CM PLUMBING INC Filer WILLIAM VITACCO ASSOCIATES	Filing for plumbing work on floors cellar and 2nd floor. No change to use, egress, or occupancy
M00408833	200 EAST 87TH STREET MANHATTAN	Alteration	Signed-off	10/15/2020	10/26/2020	Design COSENTINI ASSOCIATES Contractor ARCHSTONE BUILDERS LLC Filer WILLIAM VITACCO ASSOCIATES	Filing for mechanical work on floors cellar and 2nd floor. No change to use, egress, or occupancy.