Cornerstone Mechanical In — NYC General Contractor: DOB Permits, Filings & Buildings

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
M00770263 ↗	101 WEST 10 STREET MANHATTAN	Alteration	Permit Issued	05/20/2024	06/03/2026	Design BENDIX ENGINEERING, P.C. Owner R. A. COHEN Filer JENNY FLORES EXPEDITING	HEREBY FILING FOR THE INSTALLATION OF MECHANICAL EQUIPMENT. NO CHANGE TO USE OCCUPANCY OR EGRESS.
M01370130 ↗	230 RIVERSIDE DRIVE MANHATTAN	Alteration	Signed-off	03/23/2026	05/07/2026	Design UNION STREET STUDIO, LLC Owner R.A. COHEN & ASSOC. INC.	Installation of split system air conditioning comprising rooftop condensing units and interior ductless air handlers to provide cooling for …
Q01313036 ↗	234-01 MERRICK BOULEVARD QUEENS	Alteration	Signed-off	11/07/2025	01/22/2026	Design CITY BUILDING NY ARCHITECT P.C. Owner BENENSON REAL ESTATE CORP Filer PEREXPERTS@GMAIL.COM	To file MS work type to install HVAC unit on the roof. No change in use, egress or occupancy under this application.
B01169074 ↗	877 UNION STREET BROOKLYN	Alteration	Permit Issued	03/05/2025	12/26/2025	Design UNION STREET STUDIO, LLC Owner R. A. COHEN	Plumbing removals, relocation of existing and installation of new fixtures associated with interior renovation.
M01280907 ↗	445 AVENUE OF THE AMER MANHATTAN	Alteration	Permit Issued	10/01/2025	12/18/2025	Design BENDIX ENGINEERING, P.C.	Mechanical work as per plans filed.
B01231458 ↗	90 8 AVENUE BROOKLYN	Alteration	Permit Issued	07/14/2025	10/15/2025	Design FLORINELA MURESAN Owner SOLSTICE RESIDENTIAL GROUP Filer MUNICIPAL BUILDING CONSULTANTS	Mechanical ventilation as per plans filed herewith. No change to use, egress or occupancy

Counts cover all 21 projects (19 DOB NOW + 2 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
LL ENGINEERING PC	7	09/12/2025
BENDIX ENGINEERING, P.C.	2	10/01/2025
UNION STREET STUDIO, LLC	2	03/23/2026
CITY BUILDING NY ARCHITECT P.C.	1	11/07/2025
FLORINELA MURESAN	1	08/20/2026
HAGE ENGINEERING PC	1	08/11/2021
JACK GREEN ASSOCIATES	1	06/28/2021
JANE KIM DESIGN	1	09/12/2025
KORMAN DESIGN & BUILD	1	02/10/2021
KURV ARCHITECTURE DPC	1	08/20/2026
MYLES ARCHITECTURE, P.C.	1	03/07/2022
NSC ARCHITECTURE, PC	1	09/01/2023
RISE ARCHITECTURE	1	07/31/2024
RISE ARCHITECTURE NJ LLC	1	07/31/2024
ROMINES ARCHITECTURE PLLC	1	08/11/2021
VILLA PEX CONSULTING ENGINEERING	1	12/02/2025
WJY ELECTRIC INC.	1	07/22/2024

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

Name	Projects together	Most recent
ACHIEVE L.Y. CONSTRUCTION	1	09/12/2025
BELLEROSE PLBG & HTG	1	09/12/2025
COBOT PLUMBING AND HEATIN	1	12/02/2025
JBWS INC	1	09/12/2025
PELHAM BAY CONSTRUCTION L	1	12/02/2025
PRACTICAL PLBG & HTG INC	1	08/20/2026
PRECISE RENOVATION INC	1	08/11/2021
VISIONARTISAN REMODELING	1	08/20/2026
ZCREW CONSTRUCTION CORP	1	07/31/2024

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

Name	Projects together	Most recent
R. A. COHEN	3	03/23/2026
ARYEH REALTY CORP.	1	07/31/2024
BENENSON REAL ESTATE CORP	1	11/07/2025
BODHI FITNESS CENTER INC	1	01/13/2022
Building Equity Management LLC	1	09/12/2025
Eunahsu	1	06/13/2025
MERCER SQUARE LLC	1	06/28/2021
MOVEZY	1	08/11/2021
SOLSTICE RESIDENTIAL GROUP, LLC	1	08/20/2026

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

Name	Projects together	Most recent
DOMANI CONSULTING	2	09/12/2025
ALPHA HOME DESIGN LLC	1	07/22/2024
BMB BUILDING CONSULTING INC.	1	08/11/2021
JAM CONSULTANTS, INC.	1	07/31/2024
JENNY FLORES EXPEDITING	1	05/20/2024
KC EXPEDITING INC	1	09/01/2023
KENNY LEE ARCHITECT	1	02/10/2021
METROPOLIS GROUP INC	1	06/28/2021
MUNICIPAL BUILDING CONSULTANTS	1	08/20/2026
OUTSOURCE CONSULTANTS, INC.	1	01/13/2022
PEREXPERTS@GMAIL.COM	1	11/07/2025

19 DOB NOW projects + 2 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 21Open permit 5Signed off 14Other status 2

21 projects

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
M00770263 ↗	101 WEST 10 STREET MANHATTAN	Alteration	Permit Issued	05/20/2024	06/03/2026	Design BENDIX ENGINEERING, P.C. Owner R. A. COHEN Filer JENNY FLORES EXPEDITING	HEREBY FILING FOR THE INSTALLATION OF MECHANICAL EQUIPMENT. NO CHANGE TO USE OCCUPANCY OR EGRESS.
M01370130 ↗	230 RIVERSIDE DRIVE MANHATTAN	Alteration	Signed-off	03/23/2026	05/07/2026	Design UNION STREET STUDIO, LLC Owner R.A. COHEN & ASSOC. INC.	Installation of split system air conditioning comprising rooftop condensing units and interior ductless air handlers to provide cooling for …
Q01313036 ↗	234-01 MERRICK BOULEVARD QUEENS	Alteration	Signed-off	11/07/2025	01/22/2026	Design CITY BUILDING NY ARCHITECT P.C. Owner BENENSON REAL ESTATE CORP Filer PEREXPERTS@GMAIL.COM	To file MS work type to install HVAC unit on the roof. No change in use, egress or occupancy under this application.
B01169074 ↗	877 UNION STREET BROOKLYN	Alteration	Permit Issued	03/05/2025	12/26/2025	Design UNION STREET STUDIO, LLC Owner R. A. COHEN	Plumbing removals, relocation of existing and installation of new fixtures associated with interior renovation.
M01280907 ↗	445 AVENUE OF THE AMER MANHATTAN	Alteration	Permit Issued	10/01/2025	12/18/2025	Design BENDIX ENGINEERING, P.C.	Mechanical work as per plans filed.
B01231458 ↗	90 8 AVENUE BROOKLYN	Alteration	Permit Issued	07/14/2025	10/15/2025	Design FLORINELA MURESAN Owner SOLSTICE RESIDENTIAL GROUP Filer MUNICIPAL BUILDING CONSULTANTS	Mechanical ventilation as per plans filed herewith. No change to use, egress or occupancy
B00327953 ↗	820 LINCOLN PLACE BROOKLYN	Alteration	Signed-off	06/15/2020	12/18/2024	Design WJY ELECTRIC INC. Filer ALPHA HOME DESIGN LLC	HEREWITH FILING INSTALLATION OF MECHANICAL SYSTEM IN CONJUNCTION WITH RENOVATION OF 1 FAMILY DWELLING. GENERAL CONSTRUCTION AND PLUMBING FIL…
M01059323 ↗	419 BLEECKER STREET MANHATTAN	Alteration	Signed-off	06/17/2024	12/02/2024	Design JANE KIM DESIGN Owner Building Equity Management LLC Filer DOMANI CONSULTING	Replace/relocate 1 range, 3WC's, 2 sinks, 1 DW, 1 Shower, 2 Lavs and install 1washer, 1 tub, 1WC,1 sink2 lavs plus cap and remove i range
Q01121734 ↗	37-05 108 STREET QUEENS	Alteration	Signed-off	10/22/2024	10/31/2024	Design LL ENGINEERING PC Owner Eunahsu Filer OUTSOURCE CONSULTANTS, INC.	FILING HEREWITH MECHANICAL APPLICATION FOR THE INSTALLATION OF 8 NEW MINISPLIT SYSTEMS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
M00531018 ↗	419 BLEECKER STREET MANHATTAN	Alteration	Signed-off	07/27/2021	09/26/2024	Design HAGE ENGINEERING PC Owner MOVEZY Filer BMB BUILDING CONSULTING INC.	PROPOSE STRUCTURAL WORK INCONJUNCTION WITH ARCH DESIGN AS PER PLAN. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B00574257 ↗	634 MONROE STREET BROOKLYN	Alteration	Permit Issued	08/13/2021	09/25/2024	Design NSC ARCHITECTURE, PC Filer KC EXPEDITING INC	PROPOSE NEW MINI SPLIT SYSTEMS, KITCHEN AND TOILET EXHAUST, ALL AS PER AS PER PLANS IN CONJUNCTION WITH B00574079
M01025155 ↗	302 MOTT STREET MANHATTAN	Alteration	Signed-off	04/03/2024	05/22/2024	Design RISE ARCHITECTURE NJ LLC Owner ARYEH REALTY CORP. Filer JAM CONSULTANTS, INC.	INSTALLATION OF MECHANICAL EQUIPMENT IN RETAIL SPACES. NO CHANGE TO OCCUPANCY, USE OR EGRESS.
M00788118 ↗	246 WEST 17 STREET MANHATTAN	Alteration	Signed-off	10/17/2022	11/17/2022	Design LL ENGINEERING PC Filer DOMANI CONSULTING	replacing 4 ton condenser at roof level and installing air handlers at apartment..Filed in Conjunction with General Construction M00788110-…
B00510580 ↗	303 CLERMONT AVENUE BROOKLYN	Alteration	Signed-off	04/28/2021	03/10/2022	Design LL ENGINEERING PC	Installing HVAC system for two family dwelling - as shown on plans.
Q00656789 ↗	35-11 PRINCE STREET QUEENS	Alteration	Signed-off	01/13/2022	01/24/2022	Design LL ENGINEERING PC Owner BODHI FITNESS CENTER INC Filer OUTSOURCE CONSULTANTS, INC.	Installation of 2 new roof top units as shown herewith. No changes to egress, occupancy or Job Description for New Work (printed on work per…
Q00451310 ↗	80-35 SPRINGFIELD BLVD QUEENS	Alteration	Signed-off	02/10/2021	04/09/2021	Design KORMAN DESIGN & BUILD Filer KENNY LEE ARCHITECT	PROPOSED TO LEGALIZE NON- LOAD BEARING PARTITION IN THE EXISTING LIVING ROOM ALIGN WITH THE KITCHEN WALL IN DWELLING UNIT, #2N AS PER PLANS …
M00400100 ↗	14 WEST 4 STREET MANHATTAN	Alteration	Signed-off	12/22/2020	04/07/2021	Design JACK GREEN ASSOCIATES Owner MERCER SQUARE LLC Filer METROPOLIS GROUP INC	INSTALLATION OF MECHANICAL DUCT WORK AND UNITS. NO CHANGE TO USE, EGRESS OR OCCUPANCY.
B00426750 ↗	298 7 AVENUE BROOKLYN	Alteration	Signed-off	02/05/2021	02/09/2021	Design MYLES ARCHITECTURE, P.C. Filer MYLES ARCHITECTURE, P.C.	Install split type ac unit for residential unit at third floor. No change in use, egress or certificate of occupancy
123737313BIS	11 HARRISON STREET MANHATTAN	—	ISSUED	06/25/2020	11/06/2020	—	MH, SP
M00272267 ↗	419 BLEECKER STREET MANHATTAN	Alteration	Signed-off	01/09/2020	06/09/2020	Design LL ENGINEERING PC Filer DOMANI CONSULTING	Installing new mechanical ventilation system - condensing unit at roof and 2 air handlers and minor related duct in apartment. No change of…
440490229BIS	35-11 PRINCE STREET QUEENS	—	ISSUED	06/20/2018	06/20/2018	—	MH

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

Building	Filings	Most Recent
101 WEST 10 STREET ↗	1	07/08/2026

230 RIVERSIDE DRIVE ↗	1	07/08/2026

419 BLEECKER STREET ↗	13	07/08/2026

37-05 108 STREET ↗	1	07/08/2026

35-11 PRINCE STREET ↗	1	07/08/2026

80-35 SPRINGFIELD BLVD ↗	1	07/08/2026

302 MOTT STREET ↗	1	07/08/2026

445 AVENUE OF THE AMER ↗	1	07/08/2026

634 MONROE STREET ↗	7	07/08/2026

234-01 MERRICK BOULEVARD ↗	1	04/09/2026

90 8 AVENUE ↗	1	04/09/2026

877 UNION STREET ↗	1	04/09/2026

298 7 AVENUE ↗	3	03/21/2026

820 LINCOLN PLACE ↗	3	03/21/2026

14 WEST 4 STREET ↗	6	03/21/2026

303 CLERMONT AVENUE ↗	6	03/21/2026

246 WEST 17 STREET ↗	3	03/21/2026

▾Documents — 388 on file (BIS + DOB NOW)

▸Plans & Drawings50

▸DOB NOWPlans/Sketch39

09/03/2026M00531018-I1 · 419 BLEECKER STREETRequest digital key ↗

09/03/2026M00531018-S2 · 419 BLEECKER STREETRequest digital key ↗

09/03/2026M00531018-S1 · 419 BLEECKER STREETRequest digital key ↗

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▸DOB NOWPlans/Sketch - Mechanical Systems10

09/04/2026M00272267-I1 · 419 BLEECKER STREETRequest digital key ↗

09/04/2026M00400100-I1 · 14 WEST 4 STREETRequest digital key ↗

09/02/2026B00327953-I1 · 820 LINCOLN PLACERequest digital key ↗

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▸DOB NOWPlans/Sketch - General Construction1

08/27/2026Q00451310-I1 · 80-35 SPRINGFIELD BLVDRequest digital key ↗

▸Applications & Permits49

▸DOB NOWLPC Approval/Permit37

09/03/2026M00531018-S1 · 419 BLEECKER STREETOpen ↗

09/03/2026M00531018-I1 · 419 BLEECKER STREETOpen ↗

09/03/2026M00531018-S2 · 419 BLEECKER STREETOpen ↗

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▸BISPLAN / WORK APPROVAL APPLICATION9

08/03/2020123737313 · 11 HARRISON STREETOpen ↗

12/31/2019123737313 · 11 HARRISON STREETOpen ↗

12/30/2019123737313 · 11 HARRISON STREETOpen ↗

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▸BISWORK PERMIT APPLICATION3

06/19/2018440490229 · 35-11 PRINCE STREETOpen ↗

Showing 1 of 3 on file for this type

▸Seals & Professional Certifications175

▸DOB NOWProgress Inspector Seal & Signature66

09/28/2026M00788118-I1 · 246 WEST 17 STREETOpen ↗

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▸DOB NOWDPL-1: Design Professional Seal & Signature51

09/03/2026M00531018-S2 · 419 BLEECKER STREETOpen ↗

09/03/2026M00531018-I1 · 419 BLEECKER STREETOpen ↗

09/03/2026M00531018-S1 · 419 BLEECKER STREETOpen ↗

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▸DOB NOWSpecial Inspector Seal & Signature43

09/28/2026M00788118-I1 · 246 WEST 17 STREETOpen ↗

09/23/2026Q01313036-I1 · 234-01 MERRICK BOULEVARDOpen ↗

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▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION7

05/02/2019440490229 · 35-11 PRINCE STREETOpen ↗

11/23/2018440490229 · 35-11 PRINCE STREETOpen ↗

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▸BISPROFESSIONAL CERTIFIED CHECKLIST4

12/19/2019123737313 · 11 HARRISON STREETOpen ↗

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▸BISPROFESSIONAL CERTIFICATION STATEMENT2

06/19/2018440490229 · 35-11 PRINCE STREETOpen ↗

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▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY1

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

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▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION1

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▸Trade Schedules & Equipment7

▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE4

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▸BISEQUIPMENT USE PERMITS2

05/02/2019440490229 · 35-11 PRINCE STREETOpen ↗

▸BISEQUIPMENT USE APPLICATION/PERMIT1

05/02/2019440490229 · 35-11 PRINCE STREETOpen ↗

▸Safety & Tenant Protection9

▸DOB NOWTenant Protection Plan5

09/01/2026B00426750-I1 · 298 7 AVENUEOpen ↗

08/13/2026M00400100-P1 · 14 WEST 4 STREETOpen ↗

08/13/2026M00272267-P1 · 419 BLEECKER STREETOpen ↗

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▸BISTenant Protection Plan and Notes4

12/19/2019123737313 · 11 HARRISON STREETOpen ↗

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▸Environmental & Asbestos48

▸DOB NOWDEP ACP-5: Asbestos Assessment Report46

09/03/2026M00531018-S2 · 419 BLEECKER STREETOpen ↗

09/03/2026M00531018-S1 · 419 BLEECKER STREETOpen ↗

09/03/2026M00531018-I1 · 419 BLEECKER STREETOpen ↗

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▸BISASBESTOS: CERTIFICATION (DEP ACP5)1

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▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form1

08/13/2026B00327953-I1 · 820 LINCOLN PLACEOpen ↗

▸Energy Compliance14

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS6

11/23/2018440490229 · 35-11 PRINCE STREETOpen ↗

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▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY4

06/28/2021123737313 · 11 HARRISON STREETOpen ↗

06/15/2021123737313 · 11 HARRISON STREETOpen ↗

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▸DOB NOWEN2: As Built Energy Analysis.2

09/01/2026B00426750-I1 · 298 7 AVENUEOpen ↗

08/13/2026Q00656789-I1 · 35-11 PRINCE STREETOpen ↗

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY FOR ENERGY CODE PROGRESS INSPECTIONS1

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▸BISAS-BUILT ENERGY ANALYSIS1

11/23/2018440490229 · 35-11 PRINCE STREETOpen ↗

▸Inspections & Test Reports4

▸BISTECHNICAL REPORT: RESPONSIBILITY4

06/28/2021123737313 · 11 HARRISON STREETOpen ↗

12/01/2020123737313 · 11 HARRISON STREETOpen ↗

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▸Approvals, Objections & Sign-offs7

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST2

06/28/2021123737313 · 11 HARRISON STREETOpen ↗

05/02/2019440490229 · 35-11 PRINCE STREETOpen ↗

▸DOB NOWLandmark Approval2

09/01/2026M00272267-I1 · 419 BLEECKER STREETOpen ↗

08/13/2026M00770263-I1 · 101 WEST 10 STREETOpen ↗

▸BISSUPERSEDING LETTER1

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▸BISLANDMARKS APPROVAL1

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▸BISLANDMARKS SIGNOFF1

06/28/2021123737313 · 11 HARRISON STREETOpen ↗

▸Cost, Insurance & Ownership5

▸BISCOST AFFIDAVIT3

11/23/2018440490229 · 35-11 PRINCE STREETOpen ↗

06/19/2018440490229 · 35-11 PRINCE STREETOpen ↗

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▸BISCOST AFFIDAVIT (FINAL): PW31

06/28/2021123737313 · 11 HARRISON STREETOpen ↗

▸BISWELDERS AFFIDAVIT1

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▸Filing & Intake Forms13

▸BISBOROUGH INTAKE FORM6

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▸BISADDITIONAL INFORMATION5

12/31/2019123737313 · 11 HARRISON STREETOpen ↗

10/20/2018440490229 · 35-11 PRINCE STREETOpen ↗

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▸BISEFILING COVER SHEET1

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▸BISEFILING JOB APPLICATION COVER SHEET1

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▸Other Documents7

▸DOB NOWProof of Historic Building6

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▸DOB NOWPARTIAL DEMO: 10-DAY Notice1

09/03/2026M00531018-S2 · 419 BLEECKER STREETOpen ↗

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