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Two family converted from one family
411 OLMSTEAD AVENUE
BRONX · Castle Hill-Unionport · BIN 2021018
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1965Year Built
3Stories
B3Building Class
R5Zoning
2,044 sfGross Floor Area
2Units
Two family converted from one family · 2,558 sf lot · 0.8 FAR built · Flood zone X
Locations of Work
ArchitectureElectrical
Roof3p · 1 filing · 10 docs
Floor 11p · 1 filing · 10 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
NY BUILDING ASSOCIATES INC207/23/2026
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
BROOKLYN SOLARWORKS103/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
BROOKLYN SOLARWORKS LLCGeneral Contractor107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
NKM ENGINEERING PLLC6244207/23/2026
Building Lifecycle
All (9)Filed (2)Permit Issued (1)Signed Off (1)Special Inspection (5)
08/03/2026
Signed off — Alteration
INSTALLATION OF SOLAR PV SYSTEM. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
X01361266-I1
07/24/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
NARESH MAHANGU
07/24/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
NARESH MAHANGU
07/24/2026
Special inspection requirement — Energy Code Compliance Inspections
NARESH MAHANGU
07/24/2026
Special inspection requirement — Final
NARESH MAHANGU
07/24/2026
Special inspection requirement — Air barrier - visual inspection
NARESH MAHANGU
07/23/2026
Filed — Alteration
INSTALLATION OF SOLAR PV SYSTEM. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
X01361266-P1
02/27/2026
Permit issued — Solar
X01361266-I1-SL
02/24/2026
Filed — Alteration
INSTALLATION OF SOLAR PV SYSTEM. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
X01361266-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSolarSigned-offBROOKLYN SOLARWORKS LLC02/27/2026
BIS—ISSUEDN/A06/02/2003
2 projects · most recent 05/12/2026
HVAC Wiring
FiledStatusContractorScope
05/12/2026CompleteBROOKYLN SOLARWORKS, LLC—
02/03/2026Permit IssuedALL BALANCED ELECTRICAL IHVAC Wiring
▾Special Inspection Requirements (DOB NOW) — 5
DateRequirementInspectorRole
07/24/2026Structural Stability – Alterations of existing buildingsNARESH MAHANGUspecial
07/24/2026Fire-Resistant Penetrations and JointsNARESH MAHANGUspecial
07/24/2026Energy Code Compliance InspectionsNARESH MAHANGUprogress
07/24/2026FinalNARESH MAHANGUprogress
07/24/2026Air barrier - visual inspectionNARESH MAHANGUenergy_progress
▾Documents — 10 on file (BIS + DOB NOW)
▸Plans & Drawings2
▸DOB NOWPlans/Sketch2
08/17/2026X01361266-I1Request digital key ↗
08/17/2026X01361266-P1Request digital key ↗
▸Seals & Professional Certifications5
▸DOB NOWDPL-1: Design Professional Seal & Signature2
08/17/2026X01361266-I1Open ↗
08/17/2026X01361266-P1Open ↗
▸DOB NOWProgress Inspector Seal & Signature2
09/01/2026X01361266-I1Open ↗
09/01/2026X01361266-I1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature1
09/01/2026X01361266-I1Open ↗
▸Environmental & Asbestos2
▸DOB NOWDEP ACP-5: Asbestos Assessment Report2
08/17/2026X01361266-I1Open ↗
08/17/2026X01361266-P1Open ↗
▸Approvals, Objections & Sign-offs1
▸DOB NOWUtility Company Final Acceptance Letter1
08/17/2026X01361266-I1Open ↗