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Design Firm
GARY HOROWITZ ARCHITECT
Design
1 project with open permitsMANHATTAN · 6
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5 buildings
10
Total Filings
6
Projects on File
5
Buildings Worked
1
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month6 projects all-time
0123Aug '22 · 1Jun '23 · 2Jul '23 · 1May '24 · 1Jan '25 · 1Aug '22Nov '22Feb '23May '23Aug '23Nov '23Feb '24May '24Aug '24Nov '24Jan '25
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit117%
Signed off583%
By project type
Alteration6
Most active buildings
All buildings →
320 RIVERSIDE DRIVEMANHATTAN · latest 09/12/2023
2 projects
772 BROADWAYMANHATTAN · latest 01/06/2023
1 projects
333 EAST 53 STREETMANHATTAN · 1 open · latest 01/02/2024
1 projects
16 SUTTON PLACE SOUTHMANHATTAN · latest 03/09/2026
1 projects
11 AVENUEMANHATTAN · latest 08/06/2024
1 projects
Key relationships
Everyone →
Filing representatives
4 projects
People
All people →
Gary Horowitzlatest 12/18/2024
6 filings
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01157560 ↗16 SUTTON PLACE SOUTH
MANHATTAN
AlterationSigned-off01/15/202503/09/2026
Owner Douglas Elliman Property Management
Contractor HYDRO PLBG & HTG CORP
Filer WILLIAM VITACCO ASSOCIATES
Modifications to the existing plumbing system per plans filed herewith. No change in use, egress or occupancy.
M01038421 ↗11 AVENUE
MANHATTAN
AlterationSigned-off05/28/202408/06/2024
Contractor JOHN HUMMEL CUSTOM BLD IN
Interior renovations to apartment 29B including the removal and installation on non-load bearing partitions and related finishes. No change …
M00888360 ↗333 EAST 53 STREET
MANHATTAN
AlterationPermit Issued07/20/202301/02/2024
Contractor EAGLE GROUP LLC
Filer WILLIAM VITACCO ASSOCIATES
Legalization filing for combination of units 7J & 7K.
M00854302 ↗320 RIVERSIDE DRIVE
MANHATTAN
AlterationSigned-off06/26/202309/12/2023
Owner HOFFMAN MANAGEMENT
Contractor BYPASS MECHANICAL CORP
Filer WILLIAM VITACCO ASSOCIATES
Additions / Modifications to existing plumbing system. No change to use, egress, or occupancy.
M00854260 ↗320 RIVERSIDE DRIVE
MANHATTAN
AlterationSigned-off06/26/202309/11/2023
Contractor KAYAFAS CONTR. CO. INC
Interior renovations as per plans herewith. No change to use, egress, or occupancy.
M00777392 ↗772 BROADWAY
MANHATTAN
AlterationSigned-off08/10/202201/06/2023
Owner STEWART TENANTS CORP. C/O FIRSTSERV
Contractor KAYAFAS CONTR. CO. INC
Filer WILLIAM VITACCO ASSOCIATES
Plumbing work as shown on plans.
Counts cover all 6 projects (6 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
Gary Horowitz612/18/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
KAYAFAS CONTR. CO. INC301/15/2025
BYPASS MECHANICAL CORP206/26/2023
D.H. EAGLE PLUMBING, LLC107/20/2023
EAGLE GROUP LLC107/20/2023
JOHN HUMMEL CUSTOM BLD IN105/28/2024
WATER DYNAMIC P & H CORP101/15/2025
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
DOUGLAS ELLIMAN PROPERTY MANAGEMENT101/15/2025
HOFFMAN MANAGEMENT106/26/2023
STEWART TENANTS CORP108/15/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
WILLIAM VITACCO ASSOCIATES401/15/2025
6 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 6Open permit 1Signed off 5
6 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01157560 ↗16 SUTTON PLACE SOUTH
MANHATTAN
AlterationSigned-off01/15/202503/09/2026
Owner Douglas Elliman Property Management
Contractor HYDRO PLBG & HTG CORP
Filer WILLIAM VITACCO ASSOCIATES
Modifications to the existing plumbing system per plans filed herewith. No change in use, egress or occupancy.
M01038421 ↗11 AVENUE
MANHATTAN
AlterationSigned-off05/28/202408/06/2024
Contractor JOHN HUMMEL CUSTOM BLD IN
Interior renovations to apartment 29B including the removal and installation on non-load bearing partitions and related finishes. No change …
M00888360 ↗333 EAST 53 STREET
MANHATTAN
AlterationPermit Issued07/20/202301/02/2024
Contractor EAGLE GROUP LLC
Filer WILLIAM VITACCO ASSOCIATES
Legalization filing for combination of units 7J & 7K.
M00854302 ↗320 RIVERSIDE DRIVE
MANHATTAN
AlterationSigned-off06/26/202309/12/2023
Owner HOFFMAN MANAGEMENT
Contractor BYPASS MECHANICAL CORP
Filer WILLIAM VITACCO ASSOCIATES
Additions / Modifications to existing plumbing system. No change to use, egress, or occupancy.
M00854260 ↗320 RIVERSIDE DRIVE
MANHATTAN
AlterationSigned-off06/26/202309/11/2023
Contractor KAYAFAS CONTR. CO. INC
Interior renovations as per plans herewith. No change to use, egress, or occupancy.
M00777392 ↗772 BROADWAY
MANHATTAN
AlterationSigned-off08/10/202201/06/2023
Owner STEWART TENANTS CORP. C/O FIRSTSERV
Contractor KAYAFAS CONTR. CO. INC
Filer WILLIAM VITACCO ASSOCIATES
Plumbing work as shown on plans.
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
16 SUTTON PLACE SOUTH ↗212/18/2024
333 EAST 53 STREET ↗206/09/2023
772 BROADWAY ↗307/19/2022
320 RIVERSIDE DRIVE ↗2—
11 AVENUE ↗1—
▾Documents — 37 on file (BIS + DOB NOW)
▸Plans & Drawings9
▸DOB NOWPlans/Sketch9
09/02/2026M00777392-S1 · 772 BROADWAYRequest digital key ↗
08/30/2026M00854302-I1 · 320 RIVERSIDE DRIVERequest digital key ↗
08/30/2026M00854260-I1 · 320 RIVERSIDE DRIVERequest digital key ↗
Showing 3 of 9 on file for this type
▸Applications & Permits2
▸DOB NOWLPC Approval/Permit2
08/13/2026M00854302-I1 · 320 RIVERSIDE DRIVEOpen ↗
08/13/2026M00854260-I1 · 320 RIVERSIDE DRIVEOpen ↗
▸Seals & Professional Certifications16
▸DOB NOWDPL-1: Design Professional Seal & Signature9
09/02/2026M00777392-S1 · 772 BROADWAYOpen ↗
09/02/2026M00777392-I1 · 772 BROADWAYOpen ↗
08/29/2026M00888360-S1 · 333 EAST 53 STREETOpen ↗
Showing 3 of 9 on file for this type
▸DOB NOWProgress Inspector Seal & Signature7
09/02/2026M00777392-I1 · 772 BROADWAYOpen ↗
09/02/2026M00777392-I1 · 772 BROADWAYOpen ↗
09/02/2026M00777392-I1 · 772 BROADWAYOpen ↗
Showing 3 of 7 on file for this type
▸Safety & Tenant Protection1
▸DOB NOWHPD-1: Anti-Harassment Area Checklist1
08/13/2026M01038421-I1 · 11 AVENUEOpen ↗
▸Environmental & Asbestos8
▸DOB NOWDEP ACP-5: Asbestos Assessment Report6
09/02/2026M00777392-S1 · 772 BROADWAYOpen ↗
08/15/2026M00777392-I1 · 772 BROADWAYOpen ↗
08/13/2026M01157560-I1 · 16 SUTTON PLACE SOUTHOpen ↗
Showing 3 of 6 on file for this type
▸DOB NOWOER: Notice to Proceed1
08/13/2026M01038421-I1 · 11 AVENUEOpen ↗
▸DOB NOWOER: Notice of Satisfaction1
08/13/2026M01038421-I1 · 11 AVENUEOpen ↗
▸Energy Compliance1
▸DOB NOWEN2: As Built Energy Analysis1
08/13/2026M00777392-I1 · 772 BROADWAYOpen ↗