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Two family brick
820 EAST 51 STREET
BROOKLYN · East Flatbush-Farragut · BIN 3106235
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1940Year Built
2Stories
B1Building Class
R4Zoning
1,881 sfGross Floor Area
2Units
FDNY Report ↗
Two family brick · 1,800 sf lot · 1.05 FAR built · Flood zone X
Locations of Work
ArchitectureElectrical
Roof3p · 1 filing · 17 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
01/27/2023$685K—Private party → Private party$364/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
SQUARE ARCH, LLC204/09/2024
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
KAMTECH RESTORATION CORP403/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
BERGER QUALITY ELEC'L CONElectrical103/22/2026
KAMTECH RESTORATION CORPGeneral Contractor107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
SQ. ARCH, LLC4802204/09/2024
Building Lifecycle
All (14)Filed (2)Permit Issued (1)Signed Off (1)Special Inspection (10)
05/13/2024
Signed off — Alteration
ROOFTOP SOLAR INSTALLATION. NO CHANGE TO USE, OCCUPANCY OR EGRESS.
B00994163-I1
04/19/2024
Special inspection requirement — Structural Stability – Alterations of existing buildings
Kaijin Liang
04/19/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
Kaijin Liang
04/19/2024
Special inspection requirement — Final
Kaijin Liang
04/19/2024
Special inspection requirement — Energy Code Compliance Inspections
Kaijin Liang
04/19/2024
Special inspection requirement — Air barrier - visual inspection
Kaijin Liang
04/09/2024
Filed — Alteration
ROOFTOP SOLAR INSTALLATION. NO CHANGE TO USE, OCCUPANCY OR EGRESS.
B00994163-P1
04/09/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
Kaijin Liang
04/09/2024
Special inspection requirement — Structural Stability – Alterations of existing buildings
Kaijin Liang
04/09/2024
Special inspection requirement — Energy Code Compliance Inspections
Kaijin Liang
04/09/2024
Special inspection requirement — Final
Kaijin Liang
04/09/2024
Special inspection requirement — Air barrier - visual inspection
Kaijin Liang
03/01/2024
Permit issued — Solar
B00994163-I1-SL
02/13/2024
Filed — Alteration
ROOFTOP SOLAR INSTALLATION. NO CHANGE TO USE, OCCUPANCY OR EGRESS.
B00994163-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSolarSigned-offKAMTECH RESTORATION CORP03/01/2024
1 project · most recent 01/21/2024
FiledStatusContractorScope
01/21/2024CompleteBERGER QUALITY ELEC'L CON—
▾Special Inspection Requirements (DOB NOW) — 10
DateRequirementInspectorRole
04/19/2024Structural Stability – Alterations of existing buildingsKaijin Liangspecial
04/19/2024Fire-Resistant Penetrations and JointsKaijin Liangspecial
04/19/2024FinalKaijin Liangprogress
04/19/2024Energy Code Compliance InspectionsKaijin Liangprogress
04/19/2024Air barrier - visual inspectionKaijin Liangenergy_progress
04/09/2024Fire-Resistant Penetrations and JointsKaijin Liangspecial
04/09/2024Structural Stability – Alterations of existing buildingsKaijin Liangspecial
04/09/2024Energy Code Compliance InspectionsKaijin Liangprogress
04/09/2024FinalKaijin Liangprogress
04/09/2024Air barrier - visual inspectionKaijin Liangenergy_progress
▾Documents — 17 on file (BIS + DOB NOW)
▸Plans & Drawings2
▸DOB NOWPlans/Sketch2
08/26/2026B00994163-P1Request digital key ↗
08/26/2026B00994163-I1Request digital key ↗
▸Seals & Professional Certifications12
▸DOB NOWProgress Inspector Seal & Signature6
08/31/2026B00994163-I1Open ↗
08/31/2026B00994163-I1Open ↗
08/31/2026B00994163-I1Open ↗
Showing 3 of 6 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature4
08/31/2026B00994163-I1Open ↗
08/31/2026B00994163-I1Open ↗
08/27/2026B00994163-P1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature2
08/26/2026B00994163-P1Open ↗
08/26/2026B00994163-I1Open ↗
▸Environmental & Asbestos2
▸DOB NOWDEP ACP-5: Asbestos Assessment Report2
08/26/2026B00994163-I1Open ↗
08/26/2026B00994163-P1Open ↗
▸Approvals, Objections & Sign-offs1
▸DOB NOWUtility Company Final Acceptance Letter1
08/26/2026B00994163-I1Open ↗