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Entity
Kings County Hospital Center
Tenant
3 projects with open permitsBROOKLYN · 9
4 buildings
9
Total Filings
9
Projects on File
4
Buildings Worked
3
Projects w/ Open Permits
Tenant
Primary Trade
Activity
Projects by first filing month9 projects all-time
0123Jan '20 · 1Jul '20 · 2Nov '20 · 1Mar '21 · 2Oct '22 · 2Nov '22 · 1202020212022
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit333%
Signed off556%
Filed only111%
By project type
Alteration9
Most active buildings
All buildings →
451 CLARKSON AVENUEBROOKLYN · 2 open · latest 03/10/2026
5 projects
451 CLARKSON AVENUEBROOKLYN · latest 05/27/2022
2 projects
599 KINGSTON AVENUEBROOKLYN · 1 open · latest 04/17/2026
1 projects
451 CLARKSON AVENUEBROOKLYN · latest 01/29/2020
1 projects
Key relationships
Everyone →
Filing representatives
4 projects
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00317890 ↗599 KINGSTON AVENUE
BROOKLYN
AlterationPermit Issued11/04/202004/17/2026
Design JFK&M CONSULTING ENGINEERS
Contractor DJ INTERNATIONAL PLBG INC
Remove 1 toilet , 1 sink and related piping. Install 4 sinks and related piping for Behavioral Health integration
B07998521 ↗451 CLARKSON AVENUE
BROOKLYN
AlterationPermit Issued10/03/202203/10/2026
Design STEVEN PAUL HAMMER
Contractor SIRINA FIRE PROT CORP
Filer CASO & ASSOCIATES,INC.
New express care unit: sprinkler installation for fit out
B07998527 ↗451 CLARKSON AVENUE
BROOKLYN
AlterationPermit Issued11/02/202203/04/2024
Design STEVEN PAUL HAMMER
Contractor PHOENIX MEDICAL CONSTRUCT
Filer CASO & ASSOCIATES,INC.
New express care unit: mechanical modification
B07998526 ↗451 CLARKSON AVENUE
BROOKLYN
AlterationSigned-off10/03/202201/18/2024
Design STEVEN PAUL HAMMER
Contractor CARDOZA PLUMBING WMBE
Filer CASO & ASSOCIATES,INC.
New express care unit: plumbing modifications/installation
B00457237 ↗451 CLARKSON AVENUE
BROOKLYN
AlterationSigned-off03/04/202105/27/2022
Design KALLEN AND LEMELSON
Contractor ASHLAR MECHANICAL CORP
Building S Pharmacy renovation: 3 heads being removed, 10 heads are being relocated and 11 new heads are being installed
B00457206 ↗451 CLARKSON AVENUE
BROOKLYN
AlterationSigned-off03/04/202112/20/2021
Design KALLEN AND LEMELSON
Contractor INPRO PLUMBING CORP
Filer CASO & ASSOCIATES,INC.
Building S pharmacy renovation: remove 2 fixtures and install 2 fixtures
Counts cover all 9 projects (9 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.
NameProjects togetherMost recent
STEVEN PAUL HAMMER511/02/2022
KALLEN AND LEMELSON203/04/2021
GOLDMAN COPELAND ASSOCIATES101/29/2020
JFK&M CONSULTING ENGINEERS111/04/2020
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
ALLIANCE PLUMBING CORP110/03/2022
ASHLAR MECHANICAL CORP103/04/2021
DJ INTERNATIONAL PLBG INC111/04/2020
INPRO PLUMBING CORP103/04/2021
PAR PLUMBING CO., INC107/13/2020
PHOENIX MEDICAL CONSTRUCT111/02/2022
SIRINA FIRE PROT CORP110/03/2022
TRISTATE AIR CONDITIONING109/15/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
CASO & ASSOCIATES,INC.411/02/2022
9 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 9Open permit 3Signed off 5Filed only 1
9 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00317890 ↗599 KINGSTON AVENUE
BROOKLYN
AlterationPermit Issued11/04/202004/17/2026
Design JFK&M CONSULTING ENGINEERS
Contractor DJ INTERNATIONAL PLBG INC
Remove 1 toilet , 1 sink and related piping. Install 4 sinks and related piping for Behavioral Health integration
B07998521 ↗451 CLARKSON AVENUE
BROOKLYN
AlterationPermit Issued10/03/202203/10/2026
Design STEVEN PAUL HAMMER
Contractor SIRINA FIRE PROT CORP
Filer CASO & ASSOCIATES,INC.
New express care unit: sprinkler installation for fit out
B07998527 ↗451 CLARKSON AVENUE
BROOKLYN
AlterationPermit Issued11/02/202203/04/2024
Design STEVEN PAUL HAMMER
Contractor PHOENIX MEDICAL CONSTRUCT
Filer CASO & ASSOCIATES,INC.
New express care unit: mechanical modification
B07998526 ↗451 CLARKSON AVENUE
BROOKLYN
AlterationSigned-off10/03/202201/18/2024
Design STEVEN PAUL HAMMER
Contractor CARDOZA PLUMBING WMBE
Filer CASO & ASSOCIATES,INC.
New express care unit: plumbing modifications/installation
B00457237 ↗451 CLARKSON AVENUE
BROOKLYN
AlterationSigned-off03/04/202105/27/2022
Design KALLEN AND LEMELSON
Contractor ASHLAR MECHANICAL CORP
Building S Pharmacy renovation: 3 heads being removed, 10 heads are being relocated and 11 new heads are being installed
B00457206 ↗451 CLARKSON AVENUE
BROOKLYN
AlterationSigned-off03/04/202112/20/2021
Design KALLEN AND LEMELSON
Contractor INPRO PLUMBING CORP
Filer CASO & ASSOCIATES,INC.
Building S pharmacy renovation: remove 2 fixtures and install 2 fixtures
B00324574 ↗451 CLARKSON AVENUE
BROOKLYN
AlterationSigned-off07/13/202009/28/2021
Design STEVEN PAUL HAMMER
Contractor TRISTATE AIR CONDITIONING
Mechanical installation of a portion of the third floor for specialty clinic. PAA description in comments
B00324570 ↗451 CLARKSON AVENUE
BROOKLYN
AlterationSigned-off07/13/202003/28/2021
Design STEVEN PAUL HAMMER
Contractor PAR PLUMBING CO., INC
Plumbing installation for a portion of the third floor for the specialty clinic. Remove existing fixtures
B00274736 ↗451 CLARKSON AVENUE
BROOKLYN
AlterationFiled — no permit on record01/29/2020—
Design GOLDMAN COPELAND ASSOCIATES
—
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
451 CLARKSON AVENUE ↗511/02/2022
451 CLARKSON AVENUE ↗203/04/2021
599 KINGSTON AVENUE ↗111/04/2020
451 CLARKSON AVENUE ↗101/29/2020
▾Documents — 73 on file (BIS + DOB NOW)
▸Plans & Drawings11
▸DOB NOWPlans/Sketch4
08/28/2026B07998521-P1 · 451 CLARKSON AVENUERequest digital key ↗
08/28/2026B07998521-I1 · 451 CLARKSON AVENUERequest digital key ↗
08/28/2026B07998526-I1 · 451 CLARKSON AVENUERequest digital key ↗
Showing 3 of 4 on file for this type
▸DOB NOWPlans/Sketch - Plumbing4
09/02/2026B00274736-I1 · 451 CLARKSON AVENUERequest digital key ↗
09/02/2026B00324570-I1 · 451 CLARKSON AVENUERequest digital key ↗
09/02/2026B00317890-I1 · 599 KINGSTON AVENUERequest digital key ↗
Showing 3 of 4 on file for this type
▸DOB NOWPlans/Sketch - Mechanical Systems2
08/28/2026B00324574-I1 · 451 CLARKSON AVENUERequest digital key ↗
08/15/2026B00324574-P1 · 451 CLARKSON AVENUERequest digital key ↗
▸DOB NOWPlans/Sketch - Sprinkler1
09/01/2026B00457237-I1 · 451 CLARKSON AVENUERequest digital key ↗
▸Seals & Professional Certifications24
▸DOB NOWDPL-1: Design Professional Seal & Signature11
09/01/2026B00457206-I1 · 451 CLARKSON AVENUEOpen ↗
09/01/2026B00457237-I1 · 451 CLARKSON AVENUEOpen ↗
08/28/2026B07998521-I1 · 451 CLARKSON AVENUEOpen ↗
Showing 3 of 11 on file for this type
▸DOB NOWProgress Inspector Seal & Signature9
09/01/2026B00324574-P1 · 451 CLARKSON AVENUEOpen ↗
09/01/2026B00324574-P1 · 451 CLARKSON AVENUEOpen ↗
09/01/2026B00324574-P1 · 451 CLARKSON AVENUEOpen ↗
Showing 3 of 9 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature4
09/01/2026B00324574-P1 · 451 CLARKSON AVENUEOpen ↗
08/28/2026B00324574-I1 · 451 CLARKSON AVENUEOpen ↗
08/25/2026B07998521-P1 · 451 CLARKSON AVENUEOpen ↗
Showing 3 of 4 on file for this type
▸Environmental & Asbestos8
▸DOB NOWDEP ACP-5: Asbestos Assessment Report8
08/28/2026B07998521-I1 · 451 CLARKSON AVENUEOpen ↗
08/28/2026B07998521-P1 · 451 CLARKSON AVENUEOpen ↗
08/13/2026B07998526-I1 · 451 CLARKSON AVENUEOpen ↗
Showing 3 of 8 on file for this type
▸Approvals, Objections & Sign-offs30
▸DOB NOWDesign Commission Approval City Owned (Exterior Work)11
09/01/2026B00457206-I1 · 451 CLARKSON AVENUEOpen ↗
08/13/2026B00274736-I1 · 451 CLARKSON AVENUEOpen ↗
08/13/2026B00317890-I1 · 599 KINGSTON AVENUEOpen ↗
Showing 3 of 11 on file for this type
▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter11
09/01/2026B00457206-I1 · 451 CLARKSON AVENUEOpen ↗
09/01/2026B00457237-I1 · 451 CLARKSON AVENUEOpen ↗
08/13/2026B07998521-P1 · 451 CLARKSON AVENUEOpen ↗
Showing 3 of 11 on file for this type
▸DOB NOWDesign Commission Sign Off City Owned (Exterior Work)8
09/01/2026B00457206-I1 · 451 CLARKSON AVENUEOpen ↗
08/13/2026B00317890-I1 · 599 KINGSTON AVENUEOpen ↗
08/13/2026B00274736-I1 · 451 CLARKSON AVENUEOpen ↗
Showing 3 of 8 on file for this type