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One family attached or semi-detached
645 WILLIAMS AVENUE
BROOKLYN · East New York-New Lots · BIN 3347273
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2000Year Built
2Stories
A5Building Class
R6Zoning
1,300 sfGross Floor Area
1Units
One family attached or semi-detached · 2,664 sf lot · 0.49 FAR built · Flood zone X
Locations of Work
Electrical
Roof1p · 1 filing · 5 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
MOMENTUM SOLAR106/17/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
MXV SIA LLC9281106/17/2026
Building Lifecycle
All (8)Filed (1)Permit Issued (1)Special Inspection (6)
06/24/2026
Permit issued — Solar
B01418280-I1-SL
06/17/2026
Filed — Alteration
Installation of solar panels, rooftop, grid tied, railed, 10 modules, 4.1 KW
B01418280-I1
06/17/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Mina Makar
06/17/2026
Special inspection requirement — Post-installed Anchors
Mina Makar
06/17/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
Mina Makar
06/17/2026
Special inspection requirement — Energy Code Compliance Inspections
Mina Makar
06/17/2026
Special inspection requirement — Final
Mina Makar
06/17/2026
Special inspection requirement — Air barrier - visual inspection
Mina Makar
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSolarPermit IssuedMOMENTUM SOLAR06/24/2026
1 project · most recent 06/17/2026
FiledStatusContractorScope
06/17/2026CompleteISLAND ELECTRIC CORP—
1 project · most recent 06/17/2026
FiledStatusContractorScope
06/17/2026Permit IssuedMOMENTUM SOLAR10 panels, 4.1 kw, 176 roof_area_sqft
▾Special Inspection Requirements (DOB NOW) — 6
DateRequirementInspectorRole
06/17/2026Fire-Resistant Penetrations and JointsMina Makarspecial
06/17/2026Post-installed AnchorsMina Makarspecial
06/17/2026Structural Stability – Alterations of existing buildingsMina Makarspecial
06/17/2026Energy Code Compliance InspectionsMina Makarprogress
06/17/2026FinalMina Makarprogress
06/17/2026Air barrier - visual inspectionMina Makarenergy_progress
▾Documents — 5 on file (BIS + DOB NOW)
▸Plans & Drawings1
▸DOB NOWPlans/Sketch1
08/16/2026B01418280-I1Request digital key ↗
▸Seals & Professional Certifications4
▸DOB NOWProgress Inspector Seal & Signature2
08/25/2026B01418280-I1Open ↗
08/25/2026B01418280-I1Open ↗
▸DOB NOWDPL-1: Design Professional Seal & Signature1
08/16/2026B01418280-I1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature1
08/25/2026B01418280-I1Open ↗