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Three families
523 EAST 9 STREET
BROOKLYN · Flatbush (West)-Ditmas Park-Parkville · BIN 3127362
💬 Discuss this project
1925Year Built
2.5Stories
C0Building Class
R5Zoning
3,168 sfGross Floor Area
3Units
Rent Stabilized0 Open ViolationsFDNY Report ↗
Three families · 4,200 sf lot · 0.75 FAR built · Flood zone X
Locations of Work
StructuralElectrical
Roof4p · 1 filing · 7 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
TOM PETERSEN ARCHITECT, LLC109/22/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
J B I CONSTRUCTION GROUP203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
SOLAR STRING INCGeneral Contractor104/09/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
THOMAS PETERSEN ARCHITECT7854109/22/2025
Building Lifecycle
All (22)Filed (1)Permit Issued (1)Signed Off (1)Violation (14)Special Inspection (5)
12/23/2025
Signed off — Alteration
INSTALLATION OF SOLAR PANELS ON ROOF. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B01290543-I1
09/25/2025
Permit issued — Solar
B01290543-I1-SL
09/22/2025
Filed — Alteration
INSTALLATION OF SOLAR PANELS ON ROOF. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B01290543-I1
09/19/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
TOM PETERSEN
09/19/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
TOM PETERSEN
09/19/2025
Special inspection requirement — Energy Code Compliance Inspections
TOM PETERSEN
09/19/2025
Special inspection requirement — Final
TOM PETERSEN
09/19/2025
Special inspection requirement — Air barrier - visual inspection
TOM PETERSEN
06/09/2025
Violation issued (HPD, closed)
A
11/20/2023
Violation issued (HPD, closed)
I
03/22/2023
Violation issued (HPD, closed)
A
11/09/2022
Violation issued (HPD, closed)
I
02/24/2022
Violation issued (HPD, closed)
A
02/24/2022
Violation issued (HPD, closed)
I
04/08/2021
Violation issued (HPD, closed)
A
04/08/2021
Violation issued (HPD, closed)
I
10/30/2019
Violation issued (HPD, closed)
I
10/17/2018
Violation issued (HPD, closed)
I
11/21/2017
Violation issued (HPD, closed)
I
10/08/2015
Violation issued (HPD, closed)
I
02/18/2015
Violation issued (HPD, closed)
I
06/27/1991
Violation issued (FDNY_NOV, closed)
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSolarSigned-offSOLAR STRING INC09/25/2025
1 project · most recent 09/19/2025
FiledStatusContractorScope
09/19/2025CompleteAMBER ELECTL CONTNG INC—
▾Special Inspection Requirements (DOB NOW) — 5
DateRequirementInspectorRole
09/19/2025Fire-Resistant Penetrations and JointsTOM PETERSENspecial
09/19/2025Structural Stability – Alterations of existing buildingsTOM PETERSENspecial
09/19/2025Energy Code Compliance InspectionsTOM PETERSENprogress
09/19/2025FinalTOM PETERSENprogress
09/19/2025Air barrier - visual inspectionTOM PETERSENenergy_progress
▾Documents — 7 on file (BIS + DOB NOW)
▸Plans & Drawings1
▸DOB NOWPlans/Sketch1
08/20/2026B01290543-I1Request digital key ↗
▸Seals & Professional Certifications4
▸DOB NOWProgress Inspector Seal & Signature2
08/29/2026B01290543-I1Open ↗
08/29/2026B01290543-I1Open ↗
▸DOB NOWDPL-1: Design Professional Seal & Signature1
08/20/2026B01290543-I1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature1
08/29/2026B01290543-I1Open ↗
▸Environmental & Asbestos1
▸DOB NOWDEP ACP-5: Asbestos Assessment Report1
08/20/2026B01290543-I1Open ↗
▸Approvals, Objections & Sign-offs1
▸DOB NOWUtility Company Final Acceptance Letter1
08/13/2026B01290543-I1Open ↗