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UNIQUE DUCT DESIGN CORP
General Contractor
1 project with open permitsBRONX · 2MANHATTAN · 1
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2 buildings
8
Total Filings
3
Projects on File
2
Buildings Worked
1
Projects w/ Open Permits
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Projects by first filing month3 projects all-time
0112Feb '20 · 1May '20 · 1Jan '24 · 12021202220232024
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Open permit133%
Signed off267%
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Alteration3
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1400 PELHAM PARKWAY SOUTHBRONX · latest 01/25/2021
2 projects
261 WEST 47 STREETMANHATTAN · 1 open · latest 04/11/2024
1 projects
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ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00929249 ↗261 WEST 47 STREET
MANHATTAN
AlterationPermit Issued01/02/202404/11/2024
Design KHACHATURIAN ENGINEERING ASSOCIATES
Filer J. CALLAHAN CONSULTING, INC.
Upgrades and replacements for 2 large chillers, multiple large air handlers, pumps, fan coil units, BMS system and other ancillary HVAC syst…
X00324650 ↗1400 PELHAM PARKWAY SOUTH
BRONX
AlterationSigned-off05/20/202001/25/2021
Design R.G. VANDERWEIL ENGINEERS, PC
Mechanical installation on a portion of the 10 floor North Wing renovation
X00293700 ↗1400 PELHAM PARKWAY SOUTH
BRONX
AlterationSigned-off02/13/202007/13/2020
Design R.G. VANDERWEIL ENGINEERS, PC
Filer CASO & ASSOCIATES,INC.
North East wing - Building 1 - 4th floor new duct work/duct insulation will connect to existing supply and return air ducts and toilet exhau…
Counts cover all 3 projects (3 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
R.G. VANDERWEIL ENGINEERS, PC205/20/2020
KHACHATURIAN ENGINEERING ASSOCIATES110/18/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
J. CALLAHAN CONSULTING, INC.110/18/2024
3 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 3Open permit 1Signed off 2
3 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00929249 ↗261 WEST 47 STREET
MANHATTAN
AlterationPermit Issued01/02/202404/11/2024
Design KHACHATURIAN ENGINEERING ASSOCIATES
Filer J. CALLAHAN CONSULTING, INC.
Upgrades and replacements for 2 large chillers, multiple large air handlers, pumps, fan coil units, BMS system and other ancillary HVAC syst…
X00324650 ↗1400 PELHAM PARKWAY SOUTH
BRONX
AlterationSigned-off05/20/202001/25/2021
Design R.G. VANDERWEIL ENGINEERS, PC
Mechanical installation on a portion of the 10 floor North Wing renovation
X00293700 ↗1400 PELHAM PARKWAY SOUTH
BRONX
AlterationSigned-off02/13/202007/13/2020
Design R.G. VANDERWEIL ENGINEERS, PC
Filer CASO & ASSOCIATES,INC.
North East wing - Building 1 - 4th floor new duct work/duct insulation will connect to existing supply and return air ducts and toilet exhau…
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
1400 PELHAM PARKWAY SOUTH ↗707/08/2026
261 WEST 47 STREET ↗107/08/2026
▾Documents — 31 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch - Mechanical Systems2
08/26/2026X00293700-I1 · 1400 PELHAM PARKWAY SOUTHRequest digital key ↗
08/26/2026X00324650-I1 · 1400 PELHAM PARKWAY SOUTHRequest digital key ↗
▸DOB NOWPlans/Sketch2
08/26/2026M00929249-I1 · 261 WEST 47 STREETRequest digital key ↗
08/26/2026M00929249-P1 · 261 WEST 47 STREETRequest digital key ↗
▸Applications & Permits2
▸DOB NOWLPC Approval/Permit2
08/26/2026M00929249-I1 · 261 WEST 47 STREETOpen ↗
08/13/2026M00929249-P1 · 261 WEST 47 STREETOpen ↗
▸Seals & Professional Certifications11
▸DOB NOWProgress Inspector Seal & Signature4
08/27/2026X00293700-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
08/27/2026X00293700-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
08/27/2026X00293700-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
Showing 3 of 4 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature4
08/26/2026X00293700-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
08/26/2026X00324650-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
08/26/2026M00929249-I1 · 261 WEST 47 STREETOpen ↗
Showing 3 of 4 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature3
08/27/2026X00293700-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
08/27/2026X00293700-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
08/25/2026M00929249-I1 · 261 WEST 47 STREETOpen ↗
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report3
08/26/2026X00293700-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
08/26/2026M00929249-I1 · 261 WEST 47 STREETOpen ↗
08/13/2026M00929249-P1 · 261 WEST 47 STREETOpen ↗
▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form1
08/26/2026X00324650-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
▸Approvals, Objections & Sign-offs8
▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter4
08/26/2026X00324650-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
08/26/2026M00929249-I1 · 261 WEST 47 STREETOpen ↗
08/13/2026X00293700-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
Showing 3 of 4 on file for this type
▸DOB NOWDesign Commission Approval City Owned (Exterior Work)2
08/13/2026X00293700-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
08/13/2026X00324650-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
▸DOB NOWDesign Commission Sign Off City Owned (Exterior Work)2
08/13/2026X00324650-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
08/13/2026X00293700-I1 · 1400 PELHAM PARKWAY SOUTHOpen ↗
▸Other Documents2
▸DOB NOWProof of Historic Building2
08/26/2026M00929249-I1 · 261 WEST 47 STREETOpen ↗
08/13/2026M00929249-P1 · 261 WEST 47 STREETOpen ↗