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Design Firm
WILLIAM CAO
Design
1 project with open permitsMANHATTAN · 2
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2 buildings
2
Total Filings
2
Projects on File
2
Buildings Worked
1
Projects w/ Open Permits
Design
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Projects by first filing month2 projects all-time
0112Jan '22 · 1May '22 · 1Jan '22Feb '22Mar '22Apr '22May '22
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Alteration CO1
Alteration1
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1301 3 AVENUEMANHATTAN · 1 open · latest 04/14/2023
1 projects
300 CATHEDRAL PARKWAYMANHATTAN · latest 12/09/2022
1 projects
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1 filings
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ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00725223 ↗1301 3 AVENUE
MANHATTAN
Alteration COPermit Issued05/24/202204/14/2023
Owner NYC HOLDINGS MGMT
Contractor ALBA SERVICES INC
Filer WILLIAM VITACCO ASSOCIATES
Structural work in conjunction with fire escape replacement.
M00617587 ↗300 CATHEDRAL PARKWAY
MANHATTAN
AlterationSigned-off01/20/202212/09/2022
Contractor WILLIAM CAO
Removal of old partition wall and installation of new partition wall to create a second bedroom within the apartment. Work was completed be…
Counts cover all 2 projects (2 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
WILLIAM CAO1—
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
COLBERG ARCHITECTURE101/17/2024
GEA CONSULTING ENGINEERS101/17/2024
Withdrawn101/17/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
ALBA SERVICES INC101/17/2024
PR101/20/2022
TRITON CONSTRUCTION CO.,101/17/2024
WILLIAM CAO101/20/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
NYC HOLDINGS MGMT101/17/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
WILLIAM VITACCO ASSOCIATES101/17/2024
2 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 2Open permit 1Signed off 1
Any typeAlteration CO 1Alteration 1
2 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00725223 ↗1301 3 AVENUE
MANHATTAN
Alteration COPermit Issued05/24/202204/14/2023
Owner NYC HOLDINGS MGMT
Contractor ALBA SERVICES INC
Filer WILLIAM VITACCO ASSOCIATES
Structural work in conjunction with fire escape replacement.
M00617587 ↗300 CATHEDRAL PARKWAY
MANHATTAN
AlterationSigned-off01/20/202212/09/2022
Contractor WILLIAM CAO
Removal of old partition wall and installation of new partition wall to create a second bedroom within the apartment. Work was completed be…
Scope of Work
HVAC — 1 project · most recent 01/17/2024
Others
Structural — 1 project · most recent 01/17/2024
Steel
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
300 CATHEDRAL PARKWAY ↗1—
1301 3 AVENUE ↗1—
▾Documents — 35 on file (BIS + DOB NOW)
▸Plans & Drawings8
▸DOB NOWPlans/Sketch8
09/03/2026M00617587-I1 · 300 CATHEDRAL PARKWAYRequest digital key ↗
09/02/2026M00725223-S2 · 1301 3 AVENUERequest digital key ↗
09/02/2026M00725223-S1 · 1301 3 AVENUERequest digital key ↗
Showing 3 of 8 on file for this type
▸Seals & Professional Certifications17
▸DOB NOWProgress Inspector Seal & Signature6
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 6 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature6
09/02/2026M00725223-S2 · 1301 3 AVENUEOpen ↗
09/02/2026M00725223-S1 · 1301 3 AVENUEOpen ↗
09/02/2026M00725223-I1 · 1301 3 AVENUEOpen ↗
Showing 3 of 6 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature5
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 5 on file for this type
▸Safety & Tenant Protection2
▸DOB NOWStreet Tree Checklist2
09/02/2026M00725223-I1 · 1301 3 AVENUEOpen ↗
Showing 1 of 2 on file for this type
▸Environmental & Asbestos5
▸DOB NOWDEP ACP-5: Asbestos Assessment Report5
09/02/2026M00725223-S1 · 1301 3 AVENUEOpen ↗
09/02/2026M00725223-I1 · 1301 3 AVENUEOpen ↗
09/02/2026M00725223-P2 · 1301 3 AVENUEOpen ↗
Showing 3 of 5 on file for this type
▸Energy Compliance1
▸DOB NOWEN2: As Built Energy Analysis1
09/02/2026M00725223-I1 · 1301 3 AVENUEOpen ↗
▸Other Documents2
▸DOB NOWProperty Ownership Certification2
09/02/2026M00725223-I1 · 1301 3 AVENUEOpen ↗
Showing 1 of 2 on file for this type