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STATEN ISLAND
421 WILLOWBROOK ROAD
STATEN ISLAND · Westerleigh-Castleton Corners · BIN 5164462
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—Year Built
—Stories
—Building Class
—Zoning
—Gross Floor Area
—Units
Flood zone X
Locations of Work
Architecture
Roof3p · 1 filing · 6 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
ROPAT403/21/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
NY BUILDING ASSOCIATES INC103/27/2024
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
S R SOLAR DESIGN203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
MICHAEL CATIZONEElectrical103/21/2026
LONG ISLAND POWER SOLUTIOGeneral Contractor107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
NKM ENGINEERING PLLC6244103/27/2024
Building Lifecycle
All (8)Filed (1)Permit Issued (1)Signed Off (1)Special Inspection (5)
06/11/2024
Signed off — Alteration
S01023129-I1
05/09/2024
Permit issued — Solar
S01023129-I1-SL
03/27/2024
Filed — Alteration
S01023129-I1
03/20/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
NARESH MAHANGU
03/20/2024
Special inspection requirement — Structural Stability – Alterations of existing buildings
NARESH MAHANGU
03/20/2024
Special inspection requirement — Energy Code Compliance Inspections
NARESH MAHANGU
03/20/2024
Special inspection requirement — Final
NARESH MAHANGU
03/20/2024
Special inspection requirement — Air barrier - visual inspection
NARESH MAHANGU
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSolarSigned-offLONG ISLAND POWER SOLUTIO05/09/2024
BISPLISSUEDPREMIER PL,HTG & MECH INC06/28/2010
BIS—ISSUEDROEPAT LLC06/10/2010
1 project · most recent 03/27/2024
FiledStatusContractorScope
03/27/2024CompleteCATIZONE ELECTRICAL INC—
▾Special Inspection Requirements (DOB NOW) — 5
DateRequirementInspectorRole
03/20/2024Fire-Resistant Penetrations and JointsNARESH MAHANGUspecial
03/20/2024Structural Stability – Alterations of existing buildingsNARESH MAHANGUspecial
03/20/2024Energy Code Compliance InspectionsNARESH MAHANGUprogress
03/20/2024FinalNARESH MAHANGUprogress
03/20/2024Air barrier - visual inspectionNARESH MAHANGUenergy_progress
▾Documents — 71 on file (BIS + DOB NOW)
▸Plans & Drawings1
▸DOB NOWPlans/Sketch1
08/21/2026S01023129-I1Request digital key ↗
▸Applications & Permits11
▸BISWORK PERMIT APPLICATION5
08/24/2010520026588Open ↗
07/30/2010520026579Open ↗
06/28/2010520026579Open ↗
Showing 3 of 5 on file for this type
▸BISPLAN / WORK APPROVAL APPLICATION4
04/12/2011520026579Open ↗
06/10/2010520026579Open ↗
03/02/2010520026579Open ↗
Showing 3 of 4 on file for this type
▸BISCERTIFICATE OF OCCUPANCY: APPLICATION2
12/07/2010520026588Open ↗
12/07/2010520026579Open ↗
▸Zoning, Tax Lot & Property Records7
▸BISTAX LOT- FINAL LOT NUMBER ISSUED2
05/10/2011520026579Open ↗
05/10/2011520026588Open ↗
▸BISZONING DIAGRAM2
03/02/2010520026579Open ↗
02/16/2010520026588Open ↗
▸BISTAX LOT- TENTATIVE LOT NUMBER ISSUED2
01/13/2010520026588Open ↗
01/13/2010520026579Open ↗
▸BISRESTRICTION: RESTRICTIVE DECLARATION1
03/02/2010520026579Open ↗
▸Seals & Professional Certifications9
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION5
05/05/2011520026579Open ↗
05/05/2011520026579Open ↗
05/05/2011520026588Open ↗
Showing 3 of 5 on file for this type
▸DOB NOWProgress Inspector Seal & Signature2
08/24/2026S01023129-I1Open ↗
08/24/2026S01023129-I1Open ↗
▸DOB NOWDPL-1: Design Professional Seal & Signature1
08/13/2026S01023129-I1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature1
08/24/2026S01023129-I1Open ↗
▸Trade Schedules & Equipment18
▸BISSELF-CERT PLUMBING NOTICE8
05/04/2011520026579Open ↗
04/22/2011520026579Open ↗
04/18/2011520026579Open ↗
Showing 3 of 8 on file for this type
▸BISSCHEDULE B - PLUMBING3
04/12/2011520026579Open ↗
06/10/2010520026579Open ↗
01/06/2010520026588Open ↗
▸BISWATER METER PERMIT : DEP-METER2
05/04/2011520026579Open ↗
04/22/2011520026588Open ↗
▸BISSEWER/HOUSE CON SIGNOFF: DEP HC 0212
05/04/2011520026579Open ↗
04/22/2011520026588Open ↗
▸BISSEWER CONNECTION: DEP SD1 & SD22
03/01/2010520026579Open ↗
02/16/2010520026588Open ↗
▸BISRPZ/DDCV TEST REPORT : GEN215B1
05/05/2011520026579Open ↗
▸Safety & Tenant Protection5
▸BISSTREET TREE SIGNOFF2
05/05/2011520026588Open ↗
05/05/2011520026579Open ↗
▸BISEXCAVATION OR DEMOLITION: 5-DAY NOTICE2
06/10/2010520026588Open ↗
06/10/2010520026579Open ↗
▸BISSTREET TREE CHECKLIST1
05/05/2011520026579Open ↗
▸Inspections & Test Reports3
▸BISSoils - Investigations (Borings/Test Pits) - 2008 CODE1
01/26/2010520026579Open ↗
▸BISHYDRO FLOW TEST LETTER1
06/17/2010520026579Open ↗
▸BISHYDRAULIC FLOW CALCULATIONS1
06/17/2010520026579Open ↗
▸Approvals, Objections & Sign-offs11
▸BISSCHEDULE A - OCCUPANCY / USE2
03/02/2010520026579Open ↗
01/06/2010520026588Open ↗
▸BISADMINISTRATIVE OBJECTIONS2
01/06/2010520026588Open ↗
01/06/2010520026579Open ↗
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST2
05/05/2011520026579Open ↗
05/05/2011520026588Open ↗
▸BISTAP LETTER - DOM SVC : DEP-DOM2
05/04/2011520026579Open ↗
04/22/2011520026588Open ↗
▸BISLETTERS - SUPPORTING DOCUMENTATION1
03/01/2010520026579Open ↗
▸BISCONSTRUCTION CODE DETERMINATION1
01/26/2010520026579Open ↗
▸DOB NOWUtility Company Final Acceptance Letter1
08/13/2026S01023129-I1Open ↗
▸Filing & Intake Forms4
▸BISADDITIONAL INFORMATION2
04/22/2011520026588Open ↗
02/16/2010520026588Open ↗
▸BISEFILING COVER SHEET2
01/06/2010520026588Open ↗
01/06/2010520026579Open ↗
▸Other Documents2
▸BISPLOT DIAGRAM2
01/06/2010520026588Open ↗
01/06/2010520026579Open ↗