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Tenant
Mark Twain I.S. 239 for the Gifted & Talented
Tenant
1 project with open permitsBROOKLYN · 2
1 building
2
Total Filings
2
Projects on File
1
Buildings Worked
1
Projects w/ Open Permits
Tenant
Primary Trade
Activity
Projects by first filing month2 projects all-time
0112Sep '22 · 1Mar '23 · 1Sep '22Oct '22Nov '22Dec '22Jan '23Feb '23Mar '23
bars = month · line = 3-mo average
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Open permit150%
Filed only150%
By project type
Alteration2
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2423 NEPTUNE AVENUEBROOKLYN · 1 open · latest 06/22/2026
2 projects
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ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B008415422423 NEPTUNE AVENUE
BROOKLYN
AlterationPermit Issued03/13/202306/22/2026Work to include Parapet replacement, roof replacement, window replacement, exterior masonry work including face brick replacement, lintel re…
B007766652423 NEPTUNE AVENUE
BROOKLYN
AlterationFiled — no permit on record09/22/2022——
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
NYC School Construction Authority208/27/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
Eon Mechanical108/27/2026
Kel-Tech Construction108/27/2026
Varsity Plumbing and Heating108/27/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
NYC School Construction Authority208/27/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
NYC School Construction Authority208/27/2026
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 1Filed only 1
2 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B008415422423 NEPTUNE AVENUE
BROOKLYN
AlterationPermit Issued03/13/202306/22/2026Work to include Parapet replacement, roof replacement, window replacement, exterior masonry work including face brick replacement, lintel re…
B007766652423 NEPTUNE AVENUE
BROOKLYN
AlterationFiled — no permit on record09/22/2022——
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
2423 NEPTUNE AVENUE ↗208/27/2026
▾Documents — 105 on file (BIS + DOB NOW)
▸Plans & Drawings10
▸DOB NOWPlans/Sketch10
Showing 1 of 10 on file for this type
▸Seals & Professional Certifications50
▸DOB NOWSpecial Inspector Seal & Signature33
10/14/2026B00841542-P6 · 2423 NEPTUNE AVENUEOpen ↗
10/14/2026B00841542-P6 · 2423 NEPTUNE AVENUEOpen ↗
10/14/2026B00841542-P6 · 2423 NEPTUNE AVENUEOpen ↗
Showing 3 of 33 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature11
10/14/2026B00841542-P6 · 2423 NEPTUNE AVENUEOpen ↗
08/28/2026B00776665-I1 · 2423 NEPTUNE AVENUEOpen ↗
Showing 2 of 11 on file for this type
▸DOB NOWProgress Inspector Seal & Signature6
10/14/2026B00841542-P6 · 2423 NEPTUNE AVENUEOpen ↗
09/01/2026B00841542-P3 · 2423 NEPTUNE AVENUEOpen ↗
Showing 2 of 6 on file for this type
▸Approvals, Objections & Sign-offs29
▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter10
08/13/2026B00776665-I1 · 2423 NEPTUNE AVENUEOpen ↗
Showing 1 of 10 on file for this type
▸DOB NOWDesign Commission Approval City Owned (Exterior Work)10
08/13/2026B00776665-I1 · 2423 NEPTUNE AVENUEOpen ↗
Showing 1 of 10 on file for this type
▸DOB NOWDesign Commission Sign Off City Owned (Exterior Work)5
08/13/2026B00776665-I1 · 2423 NEPTUNE AVENUEOpen ↗
Showing 1 of 5 on file for this type
▸DOB NOWDEP Variance (V5) letter4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸Other Documents16
▸DOB NOWNYCSCA - BCC Plan Examination Transmittal11
10/14/2026B00841542-P6 · 2423 NEPTUNE AVENUEOpen ↗
08/13/2026B00776665-I1 · 2423 NEPTUNE AVENUEOpen ↗
Showing 2 of 11 on file for this type
▸DOB NOWProof of Historic Building5
08/13/2026B00776665-I1 · 2423 NEPTUNE AVENUEOpen ↗
Showing 1 of 5 on file for this type