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Contractor
MITCHEL SERVICES LLC
General Contractor
BROOKLYN · 2
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1 building
3
Total Filings
2
Projects on File
1
Buildings Worked
0
Projects w/ Open Permits
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Projects by first filing month2 projects all-time
0112Mar '21 · 1Sep '22 · 1Mar '21May '21Jul '21Sep '21Nov '21Jan '22Mar '22May '22Jul '22Sep '22
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Signed off150%
Other status150%
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Alteration1
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525 4 STREETBROOKLYN · latest 03/23/2023
2 projects
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1 projects
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ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00461604 ↗525 4 STREET
BROOKLYN
AlterationSigned-off03/08/202103/23/2023
Design OPERA STUDIO ARCHITECTURE, LLC
Owner DILIGENT PROPERTIES ASSOCIATES LLC
Moderate interior renovation of existing Cellar unit # A1, non-load bearing partitions, GWb, trim, tilework and Misc Cosmetic finishes. No c…
340794607BIS525 4 STREET
BROOKLYN
—ISSUED09/06/202209/06/2022——
Counts cover all 2 projects (1 DOB NOW + 1 legacy BIS). 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
OPERA STUDIO ARCHITECTURE, LLC103/08/2021
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
DILIGENT PROPERTIES ASSOCIATES LLC103/08/2021
1 DOB NOW project + 1 legacy BIS project, 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 1Other status 1
2 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00461604 ↗525 4 STREET
BROOKLYN
AlterationSigned-off03/08/202103/23/2023
Design OPERA STUDIO ARCHITECTURE, LLC
Owner DILIGENT PROPERTIES ASSOCIATES LLC
Moderate interior renovation of existing Cellar unit # A1, non-load bearing partitions, GWb, trim, tilework and Misc Cosmetic finishes. No c…
340794607BIS525 4 STREET
BROOKLYN
—ISSUED09/06/202209/06/2022——
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
525 4 STREET ↗303/21/2026
▾Documents — 12 on file (BIS + DOB NOW)
▸Plans & Drawings1
▸DOB NOWPlans/Sketch - General Construction1
08/15/2026B00461604-I1 · 525 4 STREETRequest digital key ↗
▸Seals & Professional Certifications8
▸DOB NOWProgress Inspector Seal & Signature6
08/29/2026B00461604-I1 · 525 4 STREETOpen ↗
08/29/2026B00461604-I1 · 525 4 STREETOpen ↗
08/29/2026B00461604-I1 · 525 4 STREETOpen ↗
Showing 3 of 6 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature1
09/01/2026B00461604-I1 · 525 4 STREETOpen ↗
▸DOB NOWSpecial Inspector Seal & Signature1
08/29/2026B00461604-I1 · 525 4 STREETOpen ↗
▸Environmental & Asbestos1
▸DOB NOWDEP ACP-5: Asbestos Assessment Report1
08/15/2026B00461604-I1 · 525 4 STREETOpen ↗
▸Energy Compliance1
▸DOB NOWEN2: As Built Energy Analysis.1
08/15/2026B00461604-I1 · 525 4 STREETOpen ↗
▸Other Documents1
▸DOB NOWDHCR Document1
08/15/2026B00461604-I1 · 525 4 STREETOpen ↗