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Two family frame
21 EAST 4 STREET
BROOKLYN · Windsor Terrace-South Slope · BIN 3122450
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1899Year Built
2Stories
B2Building Class
R5Zoning
1,500 sfGross Floor Area
2Units
2 Open Violations ▸
Two family frame · Owner of record: 21 E. 4TH STREET LLC · 2,500 sf lot · 0.6 FAR built · Flood zone X
Locations of Work
Electrical
Permit Issued — active, not yet Signed-off
RoofUnder Construction1p · 1 filing · 6 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
21 E. 4TH STREET LLC203/22/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
TOM PETERSEN ARCHITECT, LLC207/31/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
KAMTECH RESTORATION CORPGeneral Contractor107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
THOMAS PETERSEN ARCHITECT7854207/31/2026
Building Lifecycle
All (8)Filed (2)Permit Issued (1)Violation (4)Inspection (1)
07/31/2026
Filed — Alteration
ROOFTOP SOLAR INSTALLATION. NO CHANGE TO USE, OCCUPANCY OR EGRESS.
B01404434-P1
06/23/2026
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
05/22/2026
Permit issued — Solar
B01404434-I1-SL
05/19/2026
Filed — Alteration
ROOFTOP SOLAR INSTALLATION. NO CHANGE TO USE, OCCUPANCY OR EGRESS.
B01404434-I1
10/27/2025
Violation issued (ECB, closed)
Construction
11/14/2024
Violation issued (ECB, closed)
Construction
09/26/2023
Violation issued (HPD, open)
A
09/26/2023
Violation issued (HPD, open)
A
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSolarPermit IssuedKAMTECH RESTORATION CORP05/22/2026
2 projects · most recent 07/17/2026
FiledStatusContractorScope
07/17/2026CompleteBERGER QUALITY ELEC'L CON2 meters, 2 new_meters
05/18/2026CompleteBERGER QUALITY ELEC'L CON—
1 project · most recent 07/31/2026
FiledStatusContractorScope
07/31/2026Permit IssuedKAMTECH RESTORATION CORP44 panels, 19.36 kw, 865.64 roof_area_sqft
▾Field Inspections (DOB CAP) — 1
DateTypeResultReport
06/23/2026Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
▾Documents — 6 on file (BIS + DOB NOW)
▸Plans & Drawings2
▸DOB NOWPlans/Sketch2
08/16/2026B01404434-P1Request digital key ↗
08/16/2026B01404434-I1Request digital key ↗
▸Seals & Professional Certifications2
▸DOB NOWDPL-1: Design Professional Seal & Signature2
08/16/2026B01404434-P1Open ↗
08/16/2026B01404434-I1Open ↗
▸Environmental & Asbestos2
▸DOB NOWDEP ACP-5: Asbestos Assessment Report2
08/16/2026B01404434-P1Open ↗
08/16/2026B01404434-I1Open ↗