Mcmahon-Baek Architecure DPC — NYC Architecture And Engineering Firm: DOB NOW Filings, Permits & Projects

Design Firm

MCMAHON-BAEK ARCHITECURE DPC

Design

1 project with open permitsMANHATTAN · 6

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4 buildings

Total Filings

Projects on File

Buildings Worked

Projects w/ Open Permits

Design

Role

Activity

Projects by first filing month6 projects all-time

bars = month · line = 3-mo average

Portfolio status

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Open permit117%

Signed off467%

Filed only117%

By project type

Alteration6

Most active buildings

All buildings →

973 5 AVENUEMANHATTAN · 1 open · latest 08/19/2026

2 projects

1020 5 AVENUEMANHATTAN · latest 11/02/2023

2 projects

333 WEST END AVENUEMANHATTAN · latest 12/02/2021

1 projects

150 WEST 56 STREETMANHATTAN · latest 12/06/2023

1 projects

Key relationships

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Design firms

CES ENGINEERING LLC

1 projects

Filing representatives

JAM CONSULTANTS, INC.

3 projects

A1 EXPEDITING SERVICE CORP.

2 projects

Contractors

CLARK CONSTRUCTION CORP

2 projects

MCCORMACK CONTRACTING INC

2 projects

S. DONADIC INC

1 projects

Owners

KALLIR RESEARCH INSTITUTE

1 projects

People

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Thomas McMahonlatest 07/17/2026

5 filings

Filed under

MCMAHON-BAEK ARCHITECURE DPC8

Identified by the contact ids of the people who file for the firm and by its email domain (mcmahon-baek.com), not by matching names.

Most recent projects

All projects →

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
M01432666 ↗	973 5 AVENUE MANHATTAN	Alteration	Filed — no permit on record	08/19/2026	—	Owner MCMAHON-BAEK ARCHITECURE DPC Filer A1 EXPEDITING SERVICE CORP.	—
M01406552 ↗	973 5 AVENUE MANHATTAN	Alteration	Permit Issued	06/17/2026	07/10/2026	Owner MCMAHON-BAEK ARCHITECURE DPC Contractor S. DONADIC INC Filer A1 EXPEDITING SERVICE CORP.	INTERIOR RENOVATION AS PER PLANS FILED HEREWITH. NO CHANGE IN USE, OCCUPANCY OR EGRESS.
M00933970 ↗	150 WEST 56 STREET MANHATTAN	Alteration	Signed-off	09/27/2023	12/06/2023	Owner KALLIR RESEARCH INSTITUTE Contractor MCCORMACK CONTRACTING INC Filer JAM CONSULTANTS, INC.	MINOR INTERIOR RENNOVATION TO OFFICE SUITE #802. NO CHANGE TO USE EGRESS NOR OCCUPANCY.
M00706136 ↗	1020 5 AVENUE MANHATTAN	Alteration	Signed-off	03/29/2022	11/02/2023	Contractor CLARK CONSTRUCTION CORP Filer JAM CONSULTANTS, INC.	APARTMENT RENOVATION AS PER PLANS FILED HEREWITH. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
M00708182 ↗	1020 5 AVENUE MANHATTAN	Alteration	Signed-off	05/02/2022	11/02/2023	Contractor CLARK CONSTRUCTION CORP Filer JAM CONSULTANTS, INC.	APARTMENT RENOVATION AS PER PLANS FILED HEREWITH. NO CHANGE TO USE, EGRESS, OR OCCUPANCY. PAA TO SHOW CHANGE TO PLANS/ SCOPE AS PER PLANS FI…
M00510929 ↗	333 WEST END AVENUE MANHATTAN	Alteration	Signed-off	05/25/2021	12/02/2021	Contractor MCCORMACK CONTRACTING INC	New PTAC openings in existing 8th floor apartment. No change in use, egress, or occupancy.

Counts cover all 6 projects (6 DOB NOW). Dated by first filing; BIS projects by first permit issuance.

Every person filing for this firm, identified by their DOB NOW contact id (one id is one person). A person is listed under the firm they file for most.

Person	Filings	Most recent
Thomas McMahon	5	07/17/2026

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

Name	Projects together	Most recent
CES ENGINEERING LLC	1	10/30/2023

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

Name	Projects together	Most recent
CLARK CONSTRUCTION CORP	2	04/28/2023
MCCORMACK CONTRACTING INC	2	10/30/2023
S. DONADIC INC	1	06/17/2026

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

Name	Projects together	Most recent
KALLIR RESEARCH INSTITUTE	1	10/30/2023

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

Name	Projects together	Most recent
JAM CONSULTANTS, INC.	3	10/30/2023
A1 EXPEDITING SERVICE CORP.	2	08/19/2026

6 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 6Open permit 1Signed off 4Filed only 1

6 projects

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
M01432666 ↗	973 5 AVENUE MANHATTAN	Alteration	Filed — no permit on record	08/19/2026	—	Owner MCMAHON-BAEK ARCHITECURE DPC Filer A1 EXPEDITING SERVICE CORP.	—
M01406552 ↗	973 5 AVENUE MANHATTAN	Alteration	Permit Issued	06/17/2026	07/10/2026	Owner MCMAHON-BAEK ARCHITECURE DPC Contractor S. DONADIC INC Filer A1 EXPEDITING SERVICE CORP.	INTERIOR RENOVATION AS PER PLANS FILED HEREWITH. NO CHANGE IN USE, OCCUPANCY OR EGRESS.
M00933970 ↗	150 WEST 56 STREET MANHATTAN	Alteration	Signed-off	09/27/2023	12/06/2023	Owner KALLIR RESEARCH INSTITUTE Contractor MCCORMACK CONTRACTING INC Filer JAM CONSULTANTS, INC.	MINOR INTERIOR RENNOVATION TO OFFICE SUITE #802. NO CHANGE TO USE EGRESS NOR OCCUPANCY.
M00706136 ↗	1020 5 AVENUE MANHATTAN	Alteration	Signed-off	03/29/2022	11/02/2023	Contractor CLARK CONSTRUCTION CORP Filer JAM CONSULTANTS, INC.	APARTMENT RENOVATION AS PER PLANS FILED HEREWITH. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
M00708182 ↗	1020 5 AVENUE MANHATTAN	Alteration	Signed-off	05/02/2022	11/02/2023	Contractor CLARK CONSTRUCTION CORP Filer JAM CONSULTANTS, INC.	APARTMENT RENOVATION AS PER PLANS FILED HEREWITH. NO CHANGE TO USE, EGRESS, OR OCCUPANCY. PAA TO SHOW CHANGE TO PLANS/ SCOPE AS PER PLANS FI…
M00510929 ↗	333 WEST END AVENUE MANHATTAN	Alteration	Signed-off	05/25/2021	12/02/2021	Contractor MCCORMACK CONTRACTING INC	New PTAC openings in existing 8th floor apartment. No change in use, egress, or occupancy.