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Hmsi
Tenant
MANHATTAN · 2
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1 building
2
Total Filings
2
Projects on File
1
Buildings Worked
0
Projects w/ Open Permits
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Signed off2100%
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Alteration2
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900 3RD AVENUEMANHATTAN · latest 01/21/2020
2 projects
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2 projects
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1 projects
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2 projects
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ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00266862 ↗900 3RD AVENUE
MANHATTAN
AlterationSigned-off12/04/201901/21/2020
Design ROBERT DERECTOR ASSOCIATES
Owner PARAMOUNT GROUP, INC.
Contractor PREFERRED MECHANICAL INC
Filer A1 EXPEDITING SERVICE CORP.
Modification to sprinkler and plumbing systems as per plans filed herewith. No change in use, occupancy or egress.
M00266858 ↗900 3RD AVENUE
MANHATTAN
AlterationSigned-off12/04/201901/09/2020
Design ROBERT DERECTOR ASSOCIATES
Owner PARAMOUNT GROUP, INC.
Contractor GANNON CONTRACTING LLC
Filer A1 EXPEDITING SERVICE CORP.
Modification to mechanical systems as per plans filed herewith. No change in use, occupancy or egress.
Counts cover all 2 projects (2 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
Robert Derector Associates207/27/2021
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
Gannon Contracting107/27/2021
Par Fire Protection112/04/2019
Preferred Mechanical112/04/2019
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
Paramount Group207/27/2021
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 2Signed off 2
2 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00266862 ↗900 3RD AVENUE
MANHATTAN
AlterationSigned-off12/04/201901/21/2020
Design ROBERT DERECTOR ASSOCIATES
Owner PARAMOUNT GROUP, INC.
Contractor PREFERRED MECHANICAL INC
Filer A1 EXPEDITING SERVICE CORP.
Modification to sprinkler and plumbing systems as per plans filed herewith. No change in use, occupancy or egress.
M00266858 ↗900 3RD AVENUE
MANHATTAN
AlterationSigned-off12/04/201901/09/2020
Design ROBERT DERECTOR ASSOCIATES
Owner PARAMOUNT GROUP, INC.
Contractor GANNON CONTRACTING LLC
Filer A1 EXPEDITING SERVICE CORP.
Modification to mechanical systems as per plans filed herewith. No change in use, occupancy or egress.
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
900 3RD AVENUE ↗207/27/2021
▾Documents — 30 on file (BIS + DOB NOW)
▸Plans & Drawings5
▸DOB NOWPlans/Sketch - Mechanical Systems3
09/05/2026M00266858-I1 · 900 3RD AVENUERequest digital key ↗
Showing 1 of 3 on file for this type
▸DOB NOWPlans/Sketch - Plumbing1
08/15/2026M00266862-I1 · 900 3RD AVENUERequest digital key ↗
▸DOB NOWPlans/Sketch - Sprinkler1
08/15/2026M00266862-I1 · 900 3RD AVENUERequest digital key ↗
▸Seals & Professional Certifications21
▸DOB NOWProgress Inspector Seal & Signature14
08/23/2026M00266858-I1 · 900 3RD AVENUEOpen ↗
08/23/2026M00266858-I1 · 900 3RD AVENUEOpen ↗
08/23/2026M00266858-I1 · 900 3RD AVENUEOpen ↗
Showing 3 of 14 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature4
09/05/2026M00266858-P1 · 900 3RD AVENUEOpen ↗
09/05/2026M00266858-P2 · 900 3RD AVENUEOpen ↗
09/05/2026M00266858-I1 · 900 3RD AVENUEOpen ↗
Showing 3 of 4 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature3
08/27/2026M00266862-I1 · 900 3RD AVENUEOpen ↗
08/23/2026M00266858-I1 · 900 3RD AVENUEOpen ↗
Showing 2 of 3 on file for this type
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
09/05/2026M00266858-P2 · 900 3RD AVENUEOpen ↗
09/05/2026M00266858-I1 · 900 3RD AVENUEOpen ↗
08/15/2026M00266862-I1 · 900 3RD AVENUEOpen ↗
Showing 3 of 4 on file for this type