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Tenant
I.S. 171 - Brooklyn
Tenant · filed under 2 names
3 projects with open permitsBROOKLYN · 4
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1 building
4
Total Filings
4
Projects on File
1
Buildings Worked
3
Projects w/ Open Permits
Tenant
Primary Trade
Activity
Projects by first filing month4 projects all-time
0134Mar '23 · 1Apr '24 · 3Mar '23May '23Jul '23Sep '23Nov '23Jan '24Mar '24Apr '24
bars = month · line = 3-mo average
Portfolio status
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Open permit375%
Signed off125%
By project type
Alteration4
Most active buildings
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528 RIDGEWOOD AVENUEBROOKLYN · 3 open · latest 07/31/2026
4 projects
Key relationships
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Design firms
3 projects
1 projects
Filing representatives
1 projects
1 projects
Contractors
2 projects
2 projects
Filed under
I.S. 171 Brooklyn3I.S. 171 - Brooklyn1
Identified by the contact ids of the people who file for the firm and by its email domain, not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00836762528 RIDGEWOOD AVENUE
BROOKLYN
AlterationPermit Issued03/06/202307/31/2026
Design CPL ARCHITECTURE
Owner NYC SCHOOL CONSTRUCTION AUTHORITY
Contractor 2 SAAB CONSTRUCTION INC
Filer CPL ARCHITECTURE
Remove and replace exterior masonry. Construct new parapet.
B01010336528 RIDGEWOOD AVENUE
BROOKLYN
AlterationPermit Issued04/05/202407/01/2026
Design AK CONSULTING SERVICES, INC
Owner NYC SCHOOL CONSTRUCTION AUTHORITY
Contractor 2 SAAB CONSTRUCTION INC
Filer AK CONSULTING SERVICES, INC
INSTALLATION OF TEMPORARY CONSTRUCTION FENCE FOR IS 171K AT 528 RIDGEWOOD AVENUE, BROOKLYN AS INDICATED ON PLANS. THERE WILL BE NO CHANGE IN…
B01010337528 RIDGEWOOD AVENUE
BROOKLYN
AlterationSigned-off04/05/202408/07/2025
Design AK CONSULTING SERVICES, INC
Contractor SKY HEIGHTS CONSTRUCTION
INSTALLATION OF NEW SIDEWALK SHED FOR IS 171K AT 528 RIDGEWOOD AVENUE, BROOKLYN AS INDICATED ON PLANS. THERE WILL BE NO CHANGE IN THE USE, E…
B01010338528 RIDGEWOOD AVENUE
BROOKLYN
AlterationPermit Issued04/05/202408/07/2025
Design AK CONSULTING SERVICES, INC
Contractor SKY HEIGHTS CONSTRUCTION
INSTALLATION OF PIPE SCAFFOLD FOR PS 171K AT 528 RIDGEWOOD AVENUE, BROOKLYN AS INDICATED ON PLANS. THERE WILL BE NO CHANGE IN THE USE, EGRES…
Counts cover all 4 projects (4 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
AK Consulting Services304/05/2024
CPL Architecture104/17/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
2 Saab Construction204/17/2026
SKY Heights Construction204/05/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
NYC School Construction Authority204/17/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
AK Consulting Services104/05/2024
CPL Architecture104/17/2026
4 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 4Open permit 3Signed off 1
4 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00836762528 RIDGEWOOD AVENUE
BROOKLYN
AlterationPermit Issued03/06/202307/31/2026
Design CPL ARCHITECTURE
Owner NYC SCHOOL CONSTRUCTION AUTHORITY
Contractor 2 SAAB CONSTRUCTION INC
Filer CPL ARCHITECTURE
Remove and replace exterior masonry. Construct new parapet.
B01010336528 RIDGEWOOD AVENUE
BROOKLYN
AlterationPermit Issued04/05/202407/01/2026
Design AK CONSULTING SERVICES, INC
Owner NYC SCHOOL CONSTRUCTION AUTHORITY
Contractor 2 SAAB CONSTRUCTION INC
Filer AK CONSULTING SERVICES, INC
INSTALLATION OF TEMPORARY CONSTRUCTION FENCE FOR IS 171K AT 528 RIDGEWOOD AVENUE, BROOKLYN AS INDICATED ON PLANS. THERE WILL BE NO CHANGE IN…
B01010337528 RIDGEWOOD AVENUE
BROOKLYN
AlterationSigned-off04/05/202408/07/2025
Design AK CONSULTING SERVICES, INC
Contractor SKY HEIGHTS CONSTRUCTION
INSTALLATION OF NEW SIDEWALK SHED FOR IS 171K AT 528 RIDGEWOOD AVENUE, BROOKLYN AS INDICATED ON PLANS. THERE WILL BE NO CHANGE IN THE USE, E…
B01010338528 RIDGEWOOD AVENUE
BROOKLYN
AlterationPermit Issued04/05/202408/07/2025
Design AK CONSULTING SERVICES, INC
Contractor SKY HEIGHTS CONSTRUCTION
INSTALLATION OF PIPE SCAFFOLD FOR PS 171K AT 528 RIDGEWOOD AVENUE, BROOKLYN AS INDICATED ON PLANS. THERE WILL BE NO CHANGE IN THE USE, EGRES…
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
528 RIDGEWOOD AVENUE ↗404/17/2026
▾Documents — 45 on file (BIS + DOB NOW)
▸Plans & Drawings5
▸DOB NOWPlans/Sketch5
08/25/2026B01010338-I1 · 528 RIDGEWOOD AVENUERequest digital key ↗
08/25/2026B01010336-I1 · 528 RIDGEWOOD AVENUERequest digital key ↗
08/25/2026B01010337-I1 · 528 RIDGEWOOD AVENUERequest digital key ↗
Showing 3 of 5 on file for this type
▸Seals & Professional Certifications14
▸DOB NOWSpecial Inspector Seal & Signature7
10/04/2026B00836762-P1 · 528 RIDGEWOOD AVENUEOpen ↗
10/04/2026B00836762-P1 · 528 RIDGEWOOD AVENUEOpen ↗
10/04/2026B00836762-P1 · 528 RIDGEWOOD AVENUEOpen ↗
Showing 3 of 7 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature5
08/25/2026B01010338-I1 · 528 RIDGEWOOD AVENUEOpen ↗
08/25/2026B01010336-I1 · 528 RIDGEWOOD AVENUEOpen ↗
08/25/2026B01010337-I1 · 528 RIDGEWOOD AVENUEOpen ↗
Showing 3 of 5 on file for this type
▸DOB NOWProgress Inspector Seal & Signature2
10/04/2026B00836762-P1 · 528 RIDGEWOOD AVENUEOpen ↗
08/23/2026B00836762-I1 · 528 RIDGEWOOD AVENUEOpen ↗
▸Safety & Tenant Protection3
▸DOB NOWNYCSCA - Approved Site Safety Plans3
08/13/2026B01010337-I1 · 528 RIDGEWOOD AVENUEOpen ↗
08/13/2026B01010336-I1 · 528 RIDGEWOOD AVENUEOpen ↗
08/13/2026B01010338-I1 · 528 RIDGEWOOD AVENUEOpen ↗
▸Approvals, Objections & Sign-offs12
▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter5
08/13/2026B01010336-I1 · 528 RIDGEWOOD AVENUEOpen ↗
08/13/2026B01010337-I1 · 528 RIDGEWOOD AVENUEOpen ↗
08/13/2026B01010338-I1 · 528 RIDGEWOOD AVENUEOpen ↗
Showing 3 of 5 on file for this type
▸DOB NOWDesign Commission Approval City Owned (Exterior Work)5
08/13/2026B01010336-I1 · 528 RIDGEWOOD AVENUEOpen ↗
08/13/2026B01010337-I1 · 528 RIDGEWOOD AVENUEOpen ↗
08/13/2026B01010338-I1 · 528 RIDGEWOOD AVENUEOpen ↗
Showing 3 of 5 on file for this type
▸DOB NOWDEP Variance (V5) letter1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸DOB NOWDesign Commission Sign Off City Owned (Exterior Work)1
08/13/2026B01010337-I1 · 528 RIDGEWOOD AVENUEOpen ↗
▸Filing & Intake Forms2
▸DOB NOWAI1 Form2
08/13/2026B00836762-P1 · 528 RIDGEWOOD AVENUEOpen ↗
08/13/2026B00836762-I1 · 528 RIDGEWOOD AVENUEOpen ↗
▸Other Documents9
▸DOB NOWNYCSCA - BCC Plan Examination Transmittal6
08/17/2026B00836762-I1 · 528 RIDGEWOOD AVENUEOpen ↗
08/13/2026B01010336-I1 · 528 RIDGEWOOD AVENUEOpen ↗
08/13/2026B01010338-I1 · 528 RIDGEWOOD AVENUEOpen ↗
Showing 3 of 6 on file for this type
▸DOB NOWProof of Historic Building2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸DOB NOWNYCSCA Exhibit 21
08/13/2026B01010337-I1 · 528 RIDGEWOOD AVENUEOpen ↗