Studio Phh Architects — NYC Architecture Firm: DOB NOW Filings, Permits & Projects

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
M01419802 ↗	530 PARK AVENUE MANHATTAN	Alteration	Permit Issued	07/09/2026	09/10/2026	Owner Chromatic Contractor DARBY CONSTRUCTION SVC LL Filer J. CALLAHAN CONSULTING, INC.	Plumbing work for commercial space. No change of use, egress or occupancy.
B01339016 ↗	309 PRESIDENT STREET BROOKLYN	Alteration CO	Permit Issued	12/23/2025	07/14/2026	Owner 309 HQ LLC Contractor BLACK SQUARE BUILDERS CORP Filer J. CALLAHAN CONSULTING, INC.	Minor work at depressed area and steel column work, as per plans.
B01415083 ↗	309 PRESIDENT STREET BROOKLYN	Alteration	Filed — no permit on record	06/15/2026	—	Owner 309 HQ LLC Filer J. CALLAHAN CONSULTING, INC.	—
B01335227 ↗	357 CLINTON STREET BROOKLYN	Alteration	Permit Issued	12/16/2025	05/21/2026	Contractor JOHN FITZGERALD PLBG &HTG Filer J. CALLAHAN CONSULTING, INC.	Herewith filing interior and exterior alterations to an existing two family dwelling. General construction work as per plans submitted. Me…
M01266955 ↗	451 WEST BROADWAY MANHATTAN	Alteration	Permit Issued	08/25/2025	05/18/2026	Contractor ORBIT PLBG & HTG INC	Plumbing scope of work includes new, relocated, and replaces plumbing fixtures and piping, connection to existing base-building plumbing ris…
M01299800 ↗	129 CROSBY STREET MANHATTAN	Alteration	Permit Issued	10/09/2025	04/29/2026	Owner APPLEBY ARMS OWNERS CORPORATION Contractor LEMPIRA RESTORATION INC Filer J. CALLAHAN CONSULTING, INC.	Herewith filing minor interior alterations, as per plans submitted. No change to use, egress or occupancy

Counts cover all 15 projects (15 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
PIERRE-HENRI HOPPENOT	19	07/01/2026

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

Name	Projects together	Most recent
P.A. COLLINS PE	2	08/31/2026
ANZ CONSULTING ENGINEERING, PLLC	1	05/19/2026
KSI PROFESSIONAL ENGINEERS	1	07/07/2026
Stone Engineering & Architecture	1	07/09/2026

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

Name	Projects together	Most recent
LEMPIRA RESTORATION INC	3	02/10/2026
DARBY CONSTRUCTION SVC LL	2	07/09/2026
HAPPY HOUSE CONSTRUCTION	2	05/19/2026
BLACK SQUARE BUILDERS COR	1	07/07/2026
GREGG NY PLUMBING, INC	1	07/07/2026
HPG GROUP INC	1	03/15/2022
JOHN FITZGERALD PLBG &HTG	1	05/19/2026
MACALUSO GENERAL CONT COR	1	12/12/2022
MEJ PLUMBING LLC	1	02/10/2026
ORBIT PLBG & HTG INC	1	08/31/2026
ORBIT SPRINKLER CORP	1	08/31/2026
ROCKHILL CONSTRUCTION CO	1	08/31/2026
WILLIAM C. GERAKARIS P&H	1	07/09/2026

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

Name	Projects together	Most recent
115 WILLOW STREET CORP.	2	08/14/2025
309 HQ LLC	2	07/07/2026
Chromatic	2	07/09/2026
APPLEBY ARMS OWNERS CORPORATION	1	10/09/2025

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

Name	Projects together	Most recent
J. CALLAHAN CONSULTING, INC.	7	07/09/2026
JUST ARCHITECTURE	4	08/14/2025
VAA	1	02/10/2026

15 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 15Open permit 8Signed off 3Filed only 4

Any typeAlteration 11Alteration CO 4

15 projects

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
M01419802 ↗	530 PARK AVENUE MANHATTAN	Alteration	Permit Issued	07/09/2026	09/10/2026	Owner Chromatic Contractor DARBY CONSTRUCTION SVC LL Filer J. CALLAHAN CONSULTING, INC.	Plumbing work for commercial space. No change of use, egress or occupancy.
B01339016 ↗	309 PRESIDENT STREET BROOKLYN	Alteration CO	Permit Issued	12/23/2025	07/14/2026	Owner 309 HQ LLC Contractor BLACK SQUARE BUILDERS CORP Filer J. CALLAHAN CONSULTING, INC.	Minor work at depressed area and steel column work, as per plans.
B01415083 ↗	309 PRESIDENT STREET BROOKLYN	Alteration	Filed — no permit on record	06/15/2026	—	Owner 309 HQ LLC Filer J. CALLAHAN CONSULTING, INC.	—
B01335227 ↗	357 CLINTON STREET BROOKLYN	Alteration	Permit Issued	12/16/2025	05/21/2026	Contractor JOHN FITZGERALD PLBG &HTG Filer J. CALLAHAN CONSULTING, INC.	Herewith filing interior and exterior alterations to an existing two family dwelling. General construction work as per plans submitted. Me…
M01266955 ↗	451 WEST BROADWAY MANHATTAN	Alteration	Permit Issued	08/25/2025	05/18/2026	Contractor ORBIT PLBG & HTG INC	Plumbing scope of work includes new, relocated, and replaces plumbing fixtures and piping, connection to existing base-building plumbing ris…
M01299800 ↗	129 CROSBY STREET MANHATTAN	Alteration	Permit Issued	10/09/2025	04/29/2026	Owner APPLEBY ARMS OWNERS CORPORATION Contractor LEMPIRA RESTORATION INC Filer J. CALLAHAN CONSULTING, INC.	Herewith filing minor interior alterations, as per plans submitted. No change to use, egress or occupancy
B01228129 ↗	115 WILLOW STREET BROOKLYN	Alteration	Permit Issued	08/14/2025	09/12/2025	Owner 115 WILLOW STREET CORP. Contractor LEMPIRA RESTORATION Filer JUST ARCHITECTURE	General Construction at apt #5A at the 5th floor indicated on drawings filed herewith no change in use egress or Occupancy under this applic…
B01228142 ↗	115 WILLOW STREET BROOKLYN	Alteration	Filed — no permit on record	08/14/2025	—	Owner 115 WILLOW STREET CORP. Filer JUST ARCHITECTURE	—
M01239936 ↗	530 PARK AVENUE MANHATTAN	Alteration	Signed-off	06/12/2025	07/15/2025	Owner Chromatic Contractor DARBY CONSTRUCTION SVC LL Filer J. CALLAHAN CONSULTING, INC.	Herewith filing interior alterations in an existing commercial space, as per plans submitted. Interior partitions, flooring and ceiling wor…
M01202200 ↗	935 3 AVENUE MANHATTAN	Alteration	Signed-off	04/04/2025	07/11/2025	Contractor KAY PLUMBING INC Filer VAA	PROPOSE TO RENOVATE EXISTING APT 11 L ON THE 11TH FLOOR MINOR MODIFICATION OF INTERIOR NON BEARING PARTITIONS AND INSTALLATION OF NEW FINISH…
B00941590 ↗	29 3 PLACE BROOKLYN	Alteration CO	Permit Issued	10/20/2023	02/26/2025	Contractor HAPPY HOUSE CONSTRUCTION Filer JUST ARCHITECTURE	General Construction for interior and exterior work at the cellar through 2nd fl. Install porch at rear yard and Convert from Two (2) Family…
B01177028 ↗	GREENE AVENUE BROOKLYN	Alteration	Filed — no permit on record	02/10/2025	—	Filer J. CALLAHAN CONSULTING, INC.	—
B00735995 ↗	40 2 STREET BROOKLYN	Alteration CO	Permit Issued	06/08/2022	08/18/2022	Owner STUDIO PHH ARCHITECTS Contractor MACALUSO GENERAL CONT COR Filer JUST ARCHITECTURE	General Construction for renovation of building and obtain a new certificate of occupancy for change in use from a two family to a one famil…
B00669196 ↗	90 8 AVENUE BROOKLYN	Alteration	Signed-off	03/15/2022	04/22/2022	Contractor HPG GROUP INC	Herewith filing minor interior alterations, as per plans submitted. No change to use, egress or occupancy under this application.
B00489239 ↗	40 2 STREET BROOKLYN	Alteration CO	Filed — no permit on record	04/06/2021	—	—	—

Scope of Work

HVAC — 5 projects · most recent 08/31/2026

Ventilation Systems Heating and Air Conditioning Systems

Sprinkler / Standpipe — 2 projects · most recent 08/31/2026

Sprinkler System

Plumbing — 5 projects · most recent 08/31/2026

Water/Sanitary Gas

Electrical — 1 project · most recent 05/19/2025

General Wiring

Structural — 2 projects · most recent 07/07/2026

Steel Wood Masonry

Earthwork — 1 project · most recent 08/31/2026

Tenant Protection Plan 72 Hour

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

Building	Filings	Most Recent
309 PRESIDENT STREET ↗	4	07/01/2026

530 PARK AVENUE ↗	2	06/19/2026

357 CLINTON STREET ↗	3	05/15/2026

129 CROSBY STREET ↗	1	10/08/2025

451 WEST BROADWAY ↗	1	08/05/2025

115 WILLOW STREET ↗	2	05/19/2025

935 3 AVENUE ↗	3	03/27/2025

GREENE AVENUE ↗	1	02/05/2025

29 3 PLACE ↗	5	07/15/2024

40 2 STREET ↗	3	12/12/2022

90 8 AVENUE ↗	1	—