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Miscellaneous one family
4021 AVENUE I
BROOKLYN · Flatlands · BIN 3213947
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1910Year Built
2Stories
A9Building Class
R4Zoning
1,260 sfGross Floor Area
1Units
FDNY Report ↗
Miscellaneous one family · 1,950 sf lot · 0.65 FAR built · Flood zone X
Locations of Work
Electrical
Roof1p · 1 filing · 13 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
GREEN RIVER ENVIRONMENTAL ENGINEERI211/10/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
NY State Solar LLC403/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
NYSS LLCGeneral Contractor104/09/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
GREEN RIVER ENVIRONMENTAL7841211/10/2025
Building Lifecycle
All (12)Filed (2)Permit Issued (1)Signed Off (1)Special Inspection (8)
11/20/2025
Signed off — Alteration
INSTALLATION OF PHOTOVOLTAIC SOLAR ARRAY ON EXISTING ROOF SYSTEM AS PER PLANS
B01130017-I1
11/12/2025
Special inspection requirement — Air barrier - visual inspection
ROBERT MASONE
11/12/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
ROBERT MASONE
11/12/2025
Special inspection requirement — Final
ROBERT MASONE
11/12/2025
Special inspection requirement — Energy Code Compliance Inspections
ROBERT MASONE
11/10/2025
Filed — Alteration
INSTALLATION OF PHOTOVOLTAIC SOLAR ARRAY ON EXISTING ROOF SYSTEM AS PER PLANS
B01130017-P1
07/25/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
ROBERT MASONE
07/25/2025
Special inspection requirement — Energy Code Compliance Inspections
ROBERT MASONE
07/25/2025
Special inspection requirement — Final
ROBERT MASONE
07/25/2025
Special inspection requirement — Air barrier - visual inspection
ROBERT MASONE
10/28/2024
Permit issued — Solar
B01130017-I1-SL
10/21/2024
Filed — Alteration
INSTALLATION OF PHOTOVOLTAIC SOLAR ARRAY ON EXISTING ROOF SYSTEM AS PER PLANS
B01130017-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSolarSigned-offNYSS LLC10/28/2024
1 project · most recent 09/10/2024
FiledStatusContractorScope
09/10/2024CompleteNY SOLAR ELECTRICAL LLC—
▾Special Inspection Requirements (DOB NOW) — 8
DateRequirementInspectorRole
11/12/2025Air barrier - visual inspectionROBERT MASONEenergy_progress
11/12/2025Fire-Resistant Penetrations and JointsROBERT MASONEspecial
11/12/2025FinalROBERT MASONEprogress
11/12/2025Energy Code Compliance InspectionsROBERT MASONEprogress
07/25/2025Fire-Resistant Penetrations and JointsROBERT MASONEspecial
07/25/2025Energy Code Compliance InspectionsROBERT MASONEprogress
07/25/2025FinalROBERT MASONEprogress
07/25/2025Air barrier - visual inspectionROBERT MASONEenergy_progress
▾Documents — 13 on file (BIS + DOB NOW)
▸Plans & Drawings2
▸DOB NOWPlans/Sketch2
08/20/2026B01130017-I1Request digital key ↗
08/20/2026B01130017-P1Request digital key ↗
▸Seals & Professional Certifications8
▸DOB NOWProgress Inspector Seal & Signature4
09/01/2026B01130017-P1Open ↗
09/01/2026B01130017-P1Open ↗
08/24/2026B01130017-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature2
08/20/2026B01130017-P1Open ↗
08/20/2026B01130017-I1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature2
09/01/2026B01130017-P1Open ↗
08/24/2026B01130017-I1Open ↗
▸Environmental & Asbestos2
▸DOB NOWDEP ACP-5: Asbestos Assessment Report2
08/20/2026B01130017-P1Open ↗
08/20/2026B01130017-I1Open ↗
▸Approvals, Objections & Sign-offs1
▸DOB NOWUtility Company Final Acceptance Letter1
08/13/2026B01130017-I1Open ↗