Blackstone Htg & Ac Inc. — NYC General Contractor: DOB Permits, Filings & Buildings

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
B00576365 ↗	461 DEAN STREET BROOKLYN	Alteration	Signed-off	08/26/2021	03/12/2024	Design FSI ARCHITECTURE PC Owner GREYSTAR Filer EAST COAST EXPEDITING	Modifications to existing chiller CH-5-1 AND CH-5-2 ductwork. No change in occupancy, use or egress
321957619BIS	55 BERRY STREET BROOKLYN	—	ISSUED	09/24/2020	09/30/2021	—	MH, PL
M00409772 ↗	525 WEST 22 STREET MANHATTAN	Alteration	Signed-off	03/16/2021	07/30/2021	Design FSI ARCHITECTURE PC Owner SPEARS CONDOMINIUM Filer EAST COAST EXPEDITING	Rooftop unit replacement. No change in occupancy, use or egress.
B00528394 ↗	44 PINEAPPLE STREET BROOKLYN	Alteration	Signed-off	06/30/2021	07/23/2021	Design COLLADO ENGINEERING Owner ST. GEORGE TOWER AND GRILL OWNERS C Filer MUNICIPAL BUILDING CONSULTANTS	REPLACEMENT OF LOBBY AC OUTDOOR CONDENSING UNIT.THERE IS NO CHANGE IN OCCUPANCY, USE, OR EGRESS.
X00209913 ↗	890 ZEREGA AVENUE BRONX	Alteration	Signed-off	09/20/2019	08/31/2020	Design FSI ARCHITECTURE PC Owner CUMMINS SALES AND SERVICE Filer EAST COAST EXPEDITING	Rooftop gas air conditioning unit replacement. No change in occupancy, use or egress.
220692383BIS	1800 BOSTON ROAD BRONX	—	ISSUED	05/08/2019	06/02/2020	—	MH, PL

Counts cover all 7 projects (4 DOB NOW + 3 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
FSI ARCHITECTURE PC	3	12/05/2023
COLLADO ENGINEERING	1	01/03/2022

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

Name	Projects together	Most recent
CUMMINS SALES AND SERVICE	1	09/20/2019
GREYSTAR	1	12/05/2023
SPEARS CONDOMINIUM	1	03/16/2021
ST. GEORGE TOWER AND GRILL OWNERS C	1	01/03/2022

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

Name	Projects together	Most recent
EAST COAST EXPEDITING	1	12/05/2023
MUNICIPAL BUILDING CONSULTANTS	1	01/03/2022

4 DOB NOW projects + 3 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 7Signed off 4Other status 3

7 projects

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
B00576365 ↗	461 DEAN STREET BROOKLYN	Alteration	Signed-off	08/26/2021	03/12/2024	Design FSI ARCHITECTURE PC Owner GREYSTAR Filer EAST COAST EXPEDITING	Modifications to existing chiller CH-5-1 AND CH-5-2 ductwork. No change in occupancy, use or egress
321957619BIS	55 BERRY STREET BROOKLYN	—	ISSUED	09/24/2020	09/30/2021	—	MH, PL
M00409772 ↗	525 WEST 22 STREET MANHATTAN	Alteration	Signed-off	03/16/2021	07/30/2021	Design FSI ARCHITECTURE PC Owner SPEARS CONDOMINIUM Filer EAST COAST EXPEDITING	Rooftop unit replacement. No change in occupancy, use or egress.
B00528394 ↗	44 PINEAPPLE STREET BROOKLYN	Alteration	Signed-off	06/30/2021	07/23/2021	Design COLLADO ENGINEERING Owner ST. GEORGE TOWER AND GRILL OWNERS C Filer MUNICIPAL BUILDING CONSULTANTS	REPLACEMENT OF LOBBY AC OUTDOOR CONDENSING UNIT.THERE IS NO CHANGE IN OCCUPANCY, USE, OR EGRESS.
X00209913 ↗	890 ZEREGA AVENUE BRONX	Alteration	Signed-off	09/20/2019	08/31/2020	Design FSI ARCHITECTURE PC Owner CUMMINS SALES AND SERVICE Filer EAST COAST EXPEDITING	Rooftop gas air conditioning unit replacement. No change in occupancy, use or egress.
220692383BIS	1800 BOSTON ROAD BRONX	—	ISSUED	05/08/2019	06/02/2020	—	MH, PL
321815130BIS	55 BERRY STREET BROOKLYN	—	ISSUED	10/23/2018	11/15/2018	—	BL, OT, PL

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

Building	Filings	Most Recent
44 PINEAPPLE STREET ↗	1	07/08/2026

461 DEAN STREET ↗	12	03/21/2026

525 WEST 22 STREET ↗	6	03/21/2026

890 ZEREGA AVENUE ↗	3	03/21/2026

▾Documents — 158 on file (BIS + DOB NOW)

▸Plans & Drawings6

▸DOB NOWPlans/Sketch4

09/01/2026B00528394-P1 · 44 PINEAPPLE STREETRequest digital key ↗

09/01/2026B00528394-I1 · 44 PINEAPPLE STREETRequest digital key ↗

09/01/2026B00576365-I1 · 461 DEAN STREETRequest digital key ↗

Showing 3 of 4 on file for this type

▸DOB NOWPlans/Sketch - Mechanical Systems2

08/26/2026X00209913-I1 · 890 ZEREGA AVENUERequest digital key ↗

08/15/2026M00409772-I1 · 525 WEST 22 STREETRequest digital key ↗

▸Applications & Permits29

▸BISPLAN / WORK APPROVAL APPLICATION16

01/14/2022321957619 · 55 BERRY STREETOpen ↗

01/13/2022321957619 · 55 BERRY STREETOpen ↗

11/24/2021321957619 · 55 BERRY STREETOpen ↗

Showing 3 of 16 on file for this type

▸BISWORK PERMIT APPLICATION8

11/19/2018321815130 · 55 BERRY STREETOpen ↗

10/31/2018321815130 · 55 BERRY STREETOpen ↗

Showing 2 of 8 on file for this type

▸BISPLAN - WORK & PERMITS - SUPPPORTING DOCUMENTATION2

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

Showing 0 of 2 on file for this type

▸DOB NOWLPC Approval/Permit2

08/13/2026B00528394-I1 · 44 PINEAPPLE STREETOpen ↗

08/13/2026B00528394-P1 · 44 PINEAPPLE STREETOpen ↗

▸DOB NOWHPD Certification Letter or CPC Special Permit1

08/13/2026M00409772-I1 · 525 WEST 22 STREETOpen ↗

▸Seals & Professional Certifications40

▸DOB NOWProgress Inspector Seal & Signature12

08/28/2026B00528394-I1 · 44 PINEAPPLE STREETOpen ↗

08/27/2026M00409772-I1 · 525 WEST 22 STREETOpen ↗

Showing 3 of 12 on file for this type

▸DOB NOWSpecial Inspector Seal & Signature11

08/28/2026B00528394-I1 · 44 PINEAPPLE STREETOpen ↗

08/27/2026M00409772-I1 · 525 WEST 22 STREETOpen ↗

Showing 3 of 11 on file for this type

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION9

04/03/2020220692383 · 1800 BOSTON ROADOpen ↗

04/16/2019321815130 · 55 BERRY STREETOpen ↗

Showing 3 of 9 on file for this type

▸DOB NOWDPL-1: Design Professional Seal & Signature6

09/01/2026B00528394-I1 · 44 PINEAPPLE STREETOpen ↗

09/01/2026B00528394-P1 · 44 PINEAPPLE STREETOpen ↗

09/01/2026B00576365-I1 · 461 DEAN STREETOpen ↗

Showing 3 of 6 on file for this type

▸BISPROFESSIONAL CERTIFICATION STATEMENT1

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

Showing 0 of 1 on file for this type

▸BISPROFESSIONAL CERTIFIED CHECKLIST1

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

Showing 0 of 1 on file for this type

▸Trade Schedules & Equipment19

▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE5

11/22/2021321957619 · 55 BERRY STREETOpen ↗

Showing 1 of 5 on file for this type

▸BISSCHEDULE B - PLUMBING5

11/24/2021321957619 · 55 BERRY STREETOpen ↗

11/18/2021321957619 · 55 BERRY STREETOpen ↗

Showing 2 of 5 on file for this type

▸BISEQUIPMENT USE PERMITS3

08/27/2020220692383 · 1800 BOSTON ROADOpen ↗

04/03/2020220692383 · 1800 BOSTON ROADOpen ↗

▸BISSCHEDULE C - HEATING & COMBUSTION EQUIPMENT3

12/06/2018321815130 · 55 BERRY STREETOpen ↗

11/07/2018321815130 · 55 BERRY STREETOpen ↗

Showing 2 of 3 on file for this type

▸BISEQUIPMENT USE APPLICATION/PERMIT3

08/27/2020220692383 · 1800 BOSTON ROADOpen ↗

04/03/2020220692383 · 1800 BOSTON ROADOpen ↗

▸Safety & Tenant Protection7

▸BISTENANT PROTECTION PLAN AND NOTES2

07/01/2021321957619 · 55 BERRY STREETOpen ↗

Showing 1 of 2 on file for this type

▸DOB NOWTenant Protection Plan2

08/13/2026M00409772-I1 · 525 WEST 22 STREETOpen ↗

08/13/2026X00209913-I1 · 890 ZEREGA AVENUEOpen ↗

▸BISANTI-HARASSMENT CHECKLIST: CLINTON1

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

Showing 0 of 1 on file for this type

▸DOB NOWCertificate of No Harassment1

08/13/2026M00409772-I1 · 525 WEST 22 STREETOpen ↗

▸DOB NOWHPD-1: Anti-Harassment Area Checklist1

08/13/2026M00409772-I1 · 525 WEST 22 STREETOpen ↗

▸Environmental & Asbestos8

▸DOB NOWDEP ACP-5: Asbestos Assessment Report4

09/01/2026B00528394-I1 · 44 PINEAPPLE STREETOpen ↗

09/01/2026B00528394-P1 · 44 PINEAPPLE STREETOpen ↗

08/26/2026X00209913-I1 · 890 ZEREGA AVENUEOpen ↗

Showing 3 of 4 on file for this type

▸BISASBESTOS: CERTIFICATION (DEP ACP5)3

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

Showing 0 of 3 on file for this type

▸BISENVIRONMENTAL RESTRICTIONS - OER NOTICE OF SATISFACTION1

02/04/2022321957619 · 55 BERRY STREETOpen ↗

▸Energy Compliance11

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS5

04/03/2020220692383 · 1800 BOSTON ROADOpen ↗

04/16/2019321815130 · 55 BERRY STREETOpen ↗

Showing 3 of 5 on file for this type

▸DOB NOWEN2: As Built Energy Analysis.3

08/13/2026M00409772-I1 · 525 WEST 22 STREETOpen ↗

08/13/2026X00209913-I1 · 890 ZEREGA AVENUEOpen ↗

Showing 2 of 3 on file for this type

▸BISAS-BUILT ENERGY ANALYSIS2

04/03/2020220692383 · 1800 BOSTON ROADOpen ↗

04/16/2019321815130 · 55 BERRY STREETOpen ↗

▸BISAS-BUILT ENERGY ANALYSIS (EN2)1

01/13/2022321957619 · 55 BERRY STREETOpen ↗

▸Approvals, Objections & Sign-offs9

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST6

02/08/2022321957619 · 55 BERRY STREETOpen ↗

08/27/2020220692383 · 1800 BOSTON ROADOpen ↗

04/03/2020220692383 · 1800 BOSTON ROADOpen ↗

Showing 3 of 6 on file for this type

▸BISFINAL1

01/13/2022321957619 · 55 BERRY STREETOpen ↗

▸BISLETTERS - SUPPORTING DOCUMENTATION1

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

Showing 0 of 1 on file for this type

▸DOB NOWDesign Commission Sign Off City Owned (Exterior Work)1

08/13/2026X00209913-I1 · 890 ZEREGA AVENUEOpen ↗

▸Cost, Insurance & Ownership8

▸BISCOST AFFIDAVIT7

07/01/2021321957619 · 55 BERRY STREETOpen ↗

04/03/2020220692383 · 1800 BOSTON ROADOpen ↗

04/30/2019321815130 · 55 BERRY STREETOpen ↗

Showing 3 of 7 on file for this type

▸BISCOST AFFIDAVIT (FINAL): PW31

01/13/2022321957619 · 55 BERRY STREETOpen ↗

▸Filing & Intake Forms16

▸BISADDITIONAL INFORMATION7

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

Showing 0 of 7 on file for this type

▸BISBOROUGH INTAKE FORM6

08/27/2020220692383 · 1800 BOSTON ROADOpen ↗

06/03/2019321815130 · 55 BERRY STREETOpen ↗

04/30/2019321815130 · 55 BERRY STREETOpen ↗

Showing 3 of 6 on file for this type

▸BISEFILING COVER SHEET3

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

Showing 0 of 3 on file for this type

▸Other Documents5

▸DOB NOWDHCR Document5

09/01/2026B00576365-I1 · 461 DEAN STREETOpen ↗

08/13/2026B00576365-P1 · 461 DEAN STREETOpen ↗

Showing 3 of 5 on file for this type

Claim this page

Claim submitted