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Design Firm
J&S WATERPROOFING LLC
Design
11 projects with open permitsMANHATTAN · 10BROOKLYN · 1BRONX · 1
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12 buildings
18
Total Filings
12
Projects on File
12
Buildings Worked
11
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month12 projects all-time
0123Feb '24 · 1May '24 · 1Jul '24 · 1Jun '25 · 1Dec '25 · 1Mar '26 · 2Apr '26 · 1May '26 · 2Jul '26 · 1Aug '26 · 120252026
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit1192%
Signed off18%
By project type
Alteration12
Most active buildings
All buildings →
188 7 AVENUEMANHATTAN · 1 open · latest 09/17/2026
1 projects
425 EAST 51 STREETMANHATTAN · 1 open · latest 07/29/2026
1 projects
430 EAST 57 STREETMANHATTAN · latest 06/22/2026
1 projects
655 PARK AVENUEMANHATTAN · 1 open · latest 06/22/2026
1 projects
930 PARK AVENUEMANHATTAN · 1 open · latest 06/22/2026
1 projects
17 EAST 84 STREETMANHATTAN · 1 open · latest 06/22/2026
1 projects
Key relationships
Everyone →
Contractors
11 projects
People
All people →
JOZEF BIRNBACHlatest 08/19/2026
18 filings
Filed under
J&S WATERPROOFING LLC18
Identified by the contact ids of the people who file for the firm and by its email domain (jswaterproofingllc.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01450299 ↗188 7 AVENUE
MANHATTAN
AlterationPermit Issued08/26/202609/17/2026
Contractor J&S WATERPROOFING LLC
Filer Rigid Structural Design, LLC
Installation of a suspended scaffold for Facade Inspection and repair as per plan submitted. No change to egress or occupancy.
M01419460 ↗425 EAST 51 STREET
MANHATTAN
AlterationPermit Issued07/16/202607/29/2026
Owner AKAM ASSOCIATES, INC.
Contractor J&S WATERPROOFING LLC
Filer Rigid Structural Design, LLC
Installation of a suspended scaffold for Facade Inspection and repair as per plan submitted. No change to egress or occupancy.
B01357131 ↗423 ATLANTIC AVENUE
BROOKLYN
AlterationPermit Issued03/04/202606/22/2026
Owner SOLSTICE RESIDENTIAL GROUP, LLC
Contractor J&S WATERPROOFING LLC
Filer GM CONSULTING SERVICES GROUP, LLC
INSTALLATION OF OUTRIGGER BEAM AND MATERIAL HOIST TO PERFORM FACADE REPAIRS/INSPECTIONS.
M01001804 ↗420 WEST 42 STREET
MANHATTAN
AlterationPermit Issued02/09/202406/22/2026
Owner THE BRODSKY ORGANIZATION
Contractor J&S WATERPROOFING LLC
Filer SYNERGY BUILDING CONSULTANTS
Installation of suspended Scaffold for facade inspection / Repair.
M01079564 ↗430 EAST 57 STREET
MANHATTAN
AlterationSigned-off07/15/202406/22/2026
Owner GUMLEY HAFT, LLC
Contractor J&S WATERPROOFING LLC
Filer SYNERGY BUILDING CONSULTANTS
Installation of suspended scaffold for facade inspection/ repair.
M01326289 ↗655 PARK AVENUE
MANHATTAN
AlterationPermit Issued12/02/202506/22/2026
Owner 834 FIFTH AVENUE CORP
Contractor J&S WATERPROOFING LLC
Filer GM CONSULTING SERVICES GROUP, LLC
INSTALLATION OF OUTRIGGER BEAM TO PERFORM FACADE REPAIRS AND FACADE INSPECTIONS
Counts cover all 12 projects (12 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.
PersonFilingsMost recent
JOZEF BIRNBACH1808/19/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
J&S WATERPROOFING LLC1108/26/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
834 FIFTH AVENUE CORP112/02/2025
AKAM ASSOCIATES, INC.107/16/2026
FirstService Residential105/29/2024
GUMLEY HAFT103/10/2026
MAXWELL-KATES, INC.104/28/2026
Miro Real Estate105/14/2026
Plaza off the Park, HDFC106/25/2025
SOLSTICE RESIDENTIAL GROUP, LLC105/19/2026
THE BRODSKY ORGANIZATION102/09/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
Rigid Structural Design, LLC608/26/2026
GM CONSULTING SERVICES GROUP, LLC405/19/2026
SYNERGY BUILDING CONSULTANTS203/10/2026
12 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 12Open permit 11Signed off 1
12 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01450299 ↗188 7 AVENUE
MANHATTAN
AlterationPermit Issued08/26/202609/17/2026
Contractor J&S WATERPROOFING LLC
Filer Rigid Structural Design, LLC
Installation of a suspended scaffold for Facade Inspection and repair as per plan submitted. No change to egress or occupancy.
M01419460 ↗425 EAST 51 STREET
MANHATTAN
AlterationPermit Issued07/16/202607/29/2026
Owner AKAM ASSOCIATES, INC.
Contractor J&S WATERPROOFING LLC
Filer Rigid Structural Design, LLC
Installation of a suspended scaffold for Facade Inspection and repair as per plan submitted. No change to egress or occupancy.
B01357131 ↗423 ATLANTIC AVENUE
BROOKLYN
AlterationPermit Issued03/04/202606/22/2026
Owner SOLSTICE RESIDENTIAL GROUP, LLC
Contractor J&S WATERPROOFING LLC
Filer GM CONSULTING SERVICES GROUP, LLC
INSTALLATION OF OUTRIGGER BEAM AND MATERIAL HOIST TO PERFORM FACADE REPAIRS/INSPECTIONS.
M01001804 ↗420 WEST 42 STREET
MANHATTAN
AlterationPermit Issued02/09/202406/22/2026
Owner THE BRODSKY ORGANIZATION
Contractor J&S WATERPROOFING LLC
Filer SYNERGY BUILDING CONSULTANTS
Installation of suspended Scaffold for facade inspection / Repair.
M01079564 ↗430 EAST 57 STREET
MANHATTAN
AlterationSigned-off07/15/202406/22/2026
Owner GUMLEY HAFT, LLC
Contractor J&S WATERPROOFING LLC
Filer SYNERGY BUILDING CONSULTANTS
Installation of suspended scaffold for facade inspection/ repair.
M01326289 ↗655 PARK AVENUE
MANHATTAN
AlterationPermit Issued12/02/202506/22/2026
Owner 834 FIFTH AVENUE CORP
Contractor J&S WATERPROOFING LLC
Filer GM CONSULTING SERVICES GROUP, LLC
INSTALLATION OF OUTRIGGER BEAM TO PERFORM FACADE REPAIRS AND FACADE INSPECTIONS
M01363206 ↗505 GREENWICH STREET
MANHATTAN
AlterationPermit Issued03/27/202606/22/2026
Contractor J&S WATERPROOFING LLC
Filer Rigid Structural Design, LLC
Installation of a materials hoist & installation of a suspended scaffold for facade inspection and repair as per plan submitted. No change t…
M01387020 ↗17 EAST 84 STREET
MANHATTAN
AlterationPermit Issued04/28/202606/22/2026
Owner MAXWELL KATES INC
Contractor J&S WATERPROOFING LLC
Filer Rigid Structural Design, LLC
Installation of a suspended scaffold and material hoist for Facade Inspection and repair as per plan submitted. No change to egress or occup…
M01396950 ↗930 PARK AVENUE
MANHATTAN
AlterationPermit Issued05/14/202606/22/2026
Contractor J&S WATERPROOFING LLC
Filer Rigid Structural Design, LLC
Installation of a suspended scaffold for Facade repairs and Facade inspection as per plan submitted. No change to egress or occupancy.
M01397994 ↗400 EAST 54 STREET
MANHATTAN
AlterationPermit Issued05/14/202606/22/2026
Owner Miro Real Estate
Contractor J&S WATERPROOFING LLC
Filer Rigid Structural Design, LLC
Installation of a suspended scaffold for Facade Inspection and repair as per plan submitted. No change to egress or occupancy.
X01232586 ↗1815 PROSPECT AVENUE
BRONX
AlterationPermit Issued06/25/202506/22/2026
Owner Plaza off the Park, HDFC
Contractor J&S WATERPROOFING LLC
Filer GM CONSULTING SERVICES GROUP, LLC
INSTALLATION OF SUSPENDED SCAFFOLD AND MATERIAL HOIST TO PERFORM FACADE INSPECTIONS/REPAIR.
M01056459 ↗12 EAST 88 STREET
MANHATTAN
AlterationPermit Issued05/29/202406/04/2024
Owner FirstService Residential
Contractor J&S WATERPROOFING LLC
Filer GM CONSULTING SERVICES GROUP, LLC
INSTALLATION ON MATERIAL HOIST TO PERFORM FACADE REPAIRS
Scope of Work
Earthwork — 1 project · most recent 06/25/2025
Suspended Scaffold
Suspended Scaffold — 10 projects · most recent 08/24/2026
Suspended Scaffold (SC)
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
505 GREENWICH STREET ↗208/19/2026
425 EAST 51 STREET ↗106/18/2026
423 ATLANTIC AVENUE ↗305/19/2026
400 EAST 54 STREET ↗105/06/2026
930 PARK AVENUE ↗105/04/2026
17 EAST 84 STREET ↗104/14/2026
430 EAST 57 STREET ↗403/10/2026
655 PARK AVENUE ↗112/01/2025
1815 PROSPECT AVENUE ↗105/28/2025
12 EAST 88 STREET ↗105/24/2024
420 WEST 42 STREET ↗102/06/2024
188 7 AVENUE ↗1—
▾Documents — 76 on file (BIS + DOB NOW)
▸Plans & Drawings17
▸DOB NOWPlans/Sketch17
08/27/2026M01450299-I1 · 188 7 AVENUERequest digital key ↗
08/27/2026M01056459-I1 · 12 EAST 88 STREETRequest digital key ↗
08/20/2026M01326289-I1 · 655 PARK AVENUERequest digital key ↗
Showing 3 of 17 on file for this type
▸Seals & Professional Certifications21
▸DOB NOWSpecial Inspector Seal & Signature21
09/30/2026M01001804-I1 · 420 WEST 42 STREETOpen ↗
09/30/2026M01001804-I1 · 420 WEST 42 STREETOpen ↗
09/23/2026M01363206-P1 · 505 GREENWICH STREETOpen ↗
Showing 3 of 21 on file for this type
▸Other Documents38
▸DOB NOWManufacturer's Specifications19
09/10/2026M01363206-P1 · 505 GREENWICH STREETOpen ↗
08/27/2026M01450299-I1 · 188 7 AVENUEOpen ↗
08/18/2026M01079564-I1 · 430 EAST 57 STREETOpen ↗
Showing 3 of 19 on file for this type
▸DOB NOWCalculations19
09/10/2026M01363206-P1 · 505 GREENWICH STREETOpen ↗
08/27/2026M01450299-I1 · 188 7 AVENUEOpen ↗
08/18/2026M01079564-P2 · 430 EAST 57 STREETOpen ↗
Showing 3 of 19 on file for this type