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Miscellaneous one family
5109 AVENUE K
BROOKLYN · Flatlands · BIN 3216449
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1940Year Built
1Stories
A9Building Class
R4Zoning
1,690 sfGross Floor Area
1Units
FDNY Report ↗
Miscellaneous one family · 2,200 sf lot · 0.77 FAR built · Flood zone X
Locations of Work
No floor-level scope or drawing coverage on file for this building.
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
SQUARE ARCH, LLC204/14/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
KAMTECH RESTORATION CORP403/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
KAMTECH RESTORATION CORPGeneral Contractor107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
SQ. ARCH, LLC4802204/14/2025
Building Lifecycle
All (9)Filed (2)Permit Issued (1)Signed Off (1)Special Inspection (5)
05/20/2025
Signed off — Alteration
ROOFTOP SOLAR INSTALLATION. NO CHANGE TO USE, OCCUPANCY OR EGRESS.
B01175568-I1
04/29/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
Kaijin Liang
04/29/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Kaijin Liang
04/29/2025
Special inspection requirement — Final
Kaijin Liang
04/29/2025
Special inspection requirement — Energy Code Compliance Inspections
Kaijin Liang
04/29/2025
Special inspection requirement — Air barrier - visual inspection
Kaijin Liang
04/14/2025
Filed — Alteration
ROOFTOP SOLAR INSTALLATION. NO CHANGE TO USE, OCCUPANCY OR EGRESS.
B01175568-P1
02/14/2025
Permit issued — Solar
B01175568-I1-SL
02/03/2025
Filed — Alteration
ROOFTOP SOLAR INSTALLATION. NO CHANGE TO USE, OCCUPANCY OR EGRESS.
B01175568-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSolarSigned-offKAMTECH RESTORATION CORP02/14/2025
2 projects · most recent 04/14/2025
FiledStatusContractorScope
04/14/2025CompleteBERGER QUALITY ELEC'L CON1 meters
04/14/2025CompleteBERGER QUALITY ELEC'L CON—
▾Special Inspection Requirements (DOB NOW) — 5
DateRequirementInspectorRole
04/29/2025Structural Stability – Alterations of existing buildingsKaijin Liangspecial
04/29/2025Fire-Resistant Penetrations and JointsKaijin Liangspecial
04/29/2025FinalKaijin Liangprogress
04/29/2025Energy Code Compliance InspectionsKaijin Liangprogress
04/29/2025Air barrier - visual inspectionKaijin Liangenergy_progress
▾Documents — 12 on file (BIS + DOB NOW)
▸Plans & Drawings2
▸DOB NOWPlans/Sketch2
08/23/2026B01175568-I1Request digital key ↗
08/23/2026B01175568-P1Request digital key ↗
▸Seals & Professional Certifications7
▸DOB NOWProgress Inspector Seal & Signature3
08/28/2026B01175568-I1Open ↗
08/28/2026B01175568-I1Open ↗
08/28/2026B01175568-I1Open ↗
▸DOB NOWDPL-1: Design Professional Seal & Signature2
08/23/2026B01175568-I1Open ↗
08/23/2026B01175568-P1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature2
08/28/2026B01175568-I1Open ↗
08/28/2026B01175568-I1Open ↗
▸Environmental & Asbestos2
▸DOB NOWDEP ACP-5: Asbestos Assessment Report2
08/23/2026B01175568-P1Open ↗
08/23/2026B01175568-I1Open ↗
▸Approvals, Objections & Sign-offs1
▸DOB NOWUtility Company Final Acceptance Letter1
08/13/2026B01175568-I1Open ↗