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Special Inspection Agency
DHD ARCHITECTURE DESIGN P
Special Inspection Agency
1 project with open permitsMANHATTAN · 3BROOKLYN · 2
5 buildings
9
Total Filings
5
Projects on File
5
Buildings Worked
1
Projects w/ Open Permits
Special Inspection Agency
Primary Trade
Activity
Projects by first filing month5 projects all-time
0112Feb '20 · 1Mar '21 · 1Nov '21 · 1Aug '22 · 1Oct '23 · 1202120222023
bars = month · line = 3-mo average
Portfolio status
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Open permit120%
Signed off480%
By project type
Alteration5
Most active buildings
All buildings →
375 AVENUE OF THE AMERMANHATTAN · latest 12/30/2021
1 projects
929 PARK AVENUEMANHATTAN · latest 06/16/2020
1 projects
450 WASHINGTON STREETMANHATTAN · latest 10/20/2023
1 projects
109 NORTH 9 STREETBROOKLYN · latest 05/26/2023
1 projects
107 NORTH 9 STREETBROOKLYN · 1 open · latest 07/10/2024
1 projects
Key relationships
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Design firms
4 projects
1 projects
Filing representatives
4 projects
Owners
2 projects
1 projects
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00784026 ↗107 NORTH 9 STREET
BROOKLYN
AlterationPermit Issued08/04/202207/10/2024
Design DHD ARCHITECTURE DESIGN PLLC
Owner DAFNONAS ESTATES LTD
Contractor HIGH QUALITY RENOVATION I
Filer DHD ARCHITECTURE, PC
Combination of 2 dwelling units (3F & 3R) on the 3rd floor as per requirements of TPP#3/ 97. Demolition and installation of non load bearing…
M00942375 ↗450 WASHINGTON STREET
MANHATTAN
AlterationSigned-off10/05/202310/20/2023
Design DHD ARCHITECTURE DESIGN PLLC
Contractor STONE & OAK INTERIORS INC
Filer DHD ARCHITECTURE, PC
Interior renovation of existing Apartment 1110 on the 11th floor. General Construction. no change in use, occupancy or egress.
B00477829 ↗109 NORTH 9 STREET
BROOKLYN
AlterationSigned-off03/08/202105/26/2023
Design B2 ENGINEERING PC
Owner DAFNONAS ESTATES LTD
Contractor EDWARD FITZSIMMONS
Filer DHD ARCHITECTURE, PC
INSTALLATION OF NEW GAS METERS IN CELLER AND NEW GAS PIPING 001 THRU 003. NO CHANGE TO USE, OCCUPANCY OR EGRESS.
M00558738 ↗375 AVENUE OF THE AMER
MANHATTAN
AlterationSigned-off11/22/202112/30/2021
Design DHD ARCHITECTURE DESIGN PLLC
Contractor BEK PLBG & HTG LLC
Filer DHD ARCHITECTURE, PC
Relocating and replacing plumbing fixtures in existing apartment 17A on the 16th floor, Plumbing work. No change in use, occupancy or egress…
M00285748 ↗929 PARK AVENUE
MANHATTAN
AlterationSigned-off02/26/202006/16/2020
Design DHD ARCHITECTURE DESIGN PLLC
Owner DOUGLASS ELLIMAN
Contractor GALICJA PLBG AND HTG.CORP
INTERIOR PLUMBING WORK FOR APARTMENT 5A ON THE FIFTH FLOOR. PLUMBING WORK. NO CHANGE TO USE, OCCUPANCY AND EGRESS.
Counts cover all 5 projects (5 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
DHD ARCHITECTURE DESIGN PLLC410/05/2023
B2 ENGINEERING PC105/15/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
BEK PLBG & HTG LLC111/22/2021
GALICJA PLBG AND HTG.CORP102/26/2020
HIGH QUALITY RENOVATION I108/04/2022
NEW AMSTERDAM PLBG & HTG105/15/2024
STONE & OAK INTERIORS INC110/05/2023
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
DAFNONAS ESTATES LTD205/15/2024
DOUGLASS ELLIMAN102/26/2020
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
DHD ARCHITECTURE, PC405/15/2024
5 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 5Open permit 1Signed off 4
5 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00784026 ↗107 NORTH 9 STREET
BROOKLYN
AlterationPermit Issued08/04/202207/10/2024
Design DHD ARCHITECTURE DESIGN PLLC
Owner DAFNONAS ESTATES LTD
Contractor HIGH QUALITY RENOVATION I
Filer DHD ARCHITECTURE, PC
Combination of 2 dwelling units (3F & 3R) on the 3rd floor as per requirements of TPP#3/ 97. Demolition and installation of non load bearing…
M00942375 ↗450 WASHINGTON STREET
MANHATTAN
AlterationSigned-off10/05/202310/20/2023
Design DHD ARCHITECTURE DESIGN PLLC
Contractor STONE & OAK INTERIORS INC
Filer DHD ARCHITECTURE, PC
Interior renovation of existing Apartment 1110 on the 11th floor. General Construction. no change in use, occupancy or egress.
B00477829 ↗109 NORTH 9 STREET
BROOKLYN
AlterationSigned-off03/08/202105/26/2023
Design B2 ENGINEERING PC
Owner DAFNONAS ESTATES LTD
Contractor EDWARD FITZSIMMONS
Filer DHD ARCHITECTURE, PC
INSTALLATION OF NEW GAS METERS IN CELLER AND NEW GAS PIPING 001 THRU 003. NO CHANGE TO USE, OCCUPANCY OR EGRESS.
M00558738 ↗375 AVENUE OF THE AMER
MANHATTAN
AlterationSigned-off11/22/202112/30/2021
Design DHD ARCHITECTURE DESIGN PLLC
Contractor BEK PLBG & HTG LLC
Filer DHD ARCHITECTURE, PC
Relocating and replacing plumbing fixtures in existing apartment 17A on the 16th floor, Plumbing work. No change in use, occupancy or egress…
M00285748 ↗929 PARK AVENUE
MANHATTAN
AlterationSigned-off02/26/202006/16/2020
Design DHD ARCHITECTURE DESIGN PLLC
Owner DOUGLASS ELLIMAN
Contractor GALICJA PLBG AND HTG.CORP
INTERIOR PLUMBING WORK FOR APARTMENT 5A ON THE FIFTH FLOOR. PLUMBING WORK. NO CHANGE TO USE, OCCUPANCY AND EGRESS.
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
109 NORTH 9 STREET ↗505/15/2024
450 WASHINGTON STREET ↗110/05/2023
107 NORTH 9 STREET ↗108/04/2022
375 AVENUE OF THE AMER ↗111/22/2021
929 PARK AVENUE ↗102/26/2020
▾Special Inspection Requirements — 8
DateRequirementBuildingInspectorRole
05/15/2024Fire-Resistant Penetrations and Joints109 NORTH 9 STREETDavid Howellspecial
10/03/2023Lighting in dwelling units450 WASHINGTON STREETDavid Howellenergy_progress
10/02/2023Final450 WASHINGTON STREETDavid Howellprogress
10/02/2023Fire-Resistant Penetrations and Joints450 WASHINGTON STREETDavid Howellspecial
06/09/2023Fire-Resistant Penetrations and Joints109 NORTH 9 STREETDavid Howellspecial
12/01/2022Fire-Resistant Penetrations and Joints109 NORTH 9 STREETDavid Howellspecial
11/15/2021Fire-Resistant Penetrations and Joints375 AVENUE OF THE AMERDavid Howellspecial
01/28/2020Fire-Resistant Penetrations and Joints929 PARK AVENUEDavid Howellspecial
▾Documents — 37 on file (BIS + DOB NOW)
▸Plans & Drawings9
▸DOB NOWPlans/Sketch8
09/03/2026M00558738-I1 · 375 AVENUE OF THE AMERRequest digital key ↗
09/01/2026B00477829-P3 · 109 NORTH 9 STREETRequest digital key ↗
09/01/2026B00477829-P4 · 109 NORTH 9 STREETRequest digital key ↗
Showing 3 of 8 on file for this type
▸DOB NOWPlans/Sketch - Plumbing1
09/05/2026M00285748-I1 · 929 PARK AVENUERequest digital key ↗
▸Applications & Permits2
▸DOB NOWLPC Approval/Permit2
09/03/2026M00558738-I1 · 375 AVENUE OF THE AMEROpen ↗
08/13/2026M00285748-I1 · 929 PARK AVENUEOpen ↗
▸Seals & Professional Certifications17
▸DOB NOWDPL-1: Design Professional Seal & Signature9
09/03/2026M00558738-I1 · 375 AVENUE OF THE AMEROpen ↗
09/01/2026B00477829-P1 · 109 NORTH 9 STREETOpen ↗
09/01/2026B00477829-I1 · 109 NORTH 9 STREETOpen ↗
Showing 3 of 9 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature6
09/28/2026B00477829-P4 · 109 NORTH 9 STREETOpen ↗
09/19/2026M00942375-I1 · 450 WASHINGTON STREETOpen ↗
09/01/2026B00477829-P2 · 109 NORTH 9 STREETOpen ↗
Showing 3 of 6 on file for this type
▸DOB NOWProgress Inspector Seal & Signature2
09/19/2026M00942375-I1 · 450 WASHINGTON STREETOpen ↗
09/19/2026M00942375-I1 · 450 WASHINGTON STREETOpen ↗
▸Safety & Tenant Protection1
▸DOB NOWTenant Protection Plan1
08/13/2026M00285748-I1 · 929 PARK AVENUEOpen ↗
▸Environmental & Asbestos8
▸DOB NOWDEP ACP-5: Asbestos Assessment Report8
09/03/2026M00558738-I1 · 375 AVENUE OF THE AMEROpen ↗
09/01/2026B00477829-P2 · 109 NORTH 9 STREETOpen ↗
09/01/2026B00477829-P3 · 109 NORTH 9 STREETOpen ↗
Showing 3 of 8 on file for this type