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Design Firm
ISLAND STRUCTURES ENGINEERING
Design
QUEENS · 2
1 building
2
Total Filings
2
Projects on File
1
Buildings Worked
0
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month2 projects all-time
0112Mar '24 · 1May '25 · 1Mar '24May '24Jul '24Sep '24Nov '24Jan '25Mar '25May '25
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Signed off2100%
By project type
Alteration2
Most active buildings
All buildings →
20 AVENUEQUEENS · latest 05/19/2025
2 projects
Key relationships
Everyone →
Contractors
WILLIAM SCHLUMPFlatest 03/06/2025
1 filings
Filed under
ISLAND STRUCTURES ENGINEERING2
Identified by the contact ids of the people who file for the firm and by its email domain (isepc.net), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
Q01190887 ↗20 AVENUE
QUEENS
AlterationSigned-off05/12/202505/19/2025Exterior facade masonry repairs to complete Local Law 11 Cycle 9 work scope
Q00990299 ↗20 AVENUE
QUEENS
AlterationSigned-off03/13/202402/19/2025Limited facade repairs and maintenance to comply with Local Law 11 Cycle 9 Report requirements
Counts cover all 2 projects (2 DOB NOW). Dated by first filing; BIS projects by first permit issuance.
Every person filing for this firm, identified by their DOB NOW contact id (one id is one person). A person is listed under the firm they file for most.
PersonFilingsMost recent
WILLIAM SCHLUMPF103/06/2025
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
ECHOSTAR CONSTRUCTION INC205/12/2025
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
Q01190887 ↗20 AVENUE
QUEENS
AlterationSigned-off05/12/202505/19/2025Exterior facade masonry repairs to complete Local Law 11 Cycle 9 work scope
Q00990299 ↗20 AVENUE
QUEENS
AlterationSigned-off03/13/202402/19/2025Limited facade repairs and maintenance to comply with Local Law 11 Cycle 9 Report requirements
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
20 AVENUE ↗203/06/2025
▾Documents — 10 on file (BIS + DOB NOW)
▸Plans & Drawings2
▸DOB NOWPlans/Sketch2
08/23/2026Q00990299-I1 · 20 AVENUERequest digital key ↗
08/20/2026Q01190887-I1 · 20 AVENUERequest digital key ↗
▸Seals & Professional Certifications6
▸DOB NOWDPL-1: Design Professional Seal & Signature2
08/20/2026Q01190887-I1 · 20 AVENUEOpen ↗
08/13/2026Q00990299-I1 · 20 AVENUEOpen ↗
▸DOB NOWProgress Inspector Seal & Signature2
08/27/2026Q01190887-I1 · 20 AVENUEOpen ↗
08/27/2026Q00990299-I1 · 20 AVENUEOpen ↗
▸DOB NOWSpecial Inspector Seal & Signature2
08/27/2026Q01190887-I1 · 20 AVENUEOpen ↗
08/27/2026Q00990299-I1 · 20 AVENUEOpen ↗
▸Environmental & Asbestos2
▸DOB NOWDEP ACP-5: Asbestos Assessment Report2
08/20/2026Q01190887-I1 · 20 AVENUEOpen ↗
08/13/2026Q00990299-I1 · 20 AVENUEOpen ↗