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Large suburban residence
5051 ISELIN AVENUE
BRONX · Riverdale-Spuyten Duyvil · BIN 2084596
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1920Year Built
1.75Stories
A3Building Class
R1-2Zoning
2,808 sfGross Floor Area
1Units
0 Open Violations
Large suburban residence · Owner of record: NORTHERN 1 LLC · 19,846 sf lot · 0.14 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralMechanicalPlumbingGeneralOther
Roof14p · 2 filings · 20 docs
Floor 27p · 1 filing · 20 docs
Floor 153p · 3 filings · 20 docs
Cellar22p · 2 filings · 20 docs
Basement3p · 1 filing · 20 docs
Site & exterior23p · 2 filings · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
12/17/2018$2.2M—Private party → NORTHERN 1 LLC$801/sf unit
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
BUILDING STUDIO ARCHITECTS1901/14/2026
KEY CIVIL ENGINEERING PC305/31/2024
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
BG & ASSOCIATES2803/21/2026
GREGG ROTHSTEIN ARCHITECT203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
KEY CONSTRUCTION PARTNERGeneral Contractor903/21/2026
S. TIEGER PLBG. CO., INCPlumbing407/08/2026
FUSION ELECTL CONTRNG LLCElectrical103/22/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
BUILDING STUDIO ARCHITECT5921601/14/2026
KEY CIVIL ENGINEERING, PC2335305/31/2024
Building Lifecycle
All (71)Filed (22)Permit Issued (7)Signed Off (3)Violation (1)Inspection (8)Special Inspection (30)
01/20/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
John Field
01/20/2026
Special inspection requirement — HVAC insulation and sealing
John Field
01/20/2026
Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation
John Field
01/14/2026
Filed — Alteration
FILING FOR RELATED PLUMBING WORK IN CONJUNCTION WITH APPLICATION # 220684463.
X00382953-P7
08/20/2024
Filed — Alteration
FILING FOR RELATED PLUMBING WORK IN CONJUNCTION WITH APPLICATION # 220684463.
X00382953-P6
07/31/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
John Field
07/31/2024
Special inspection requirement — HVAC insulation and sealing
John Field
07/31/2024
Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation
John Field
07/05/2024
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
06/10/2024
Signed off — Alteration
Construction of on-site underground retention system with associated piping for existing residence and proposed building addition.
X00638415-I1
06/04/2024
Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation
Jaclyn Peranteau
05/31/2024
Filed — Alteration
Construction of on-site underground retention system with associated piping for existing residence and proposed building addition.
X00638415-P2
05/29/2024
Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation
Jaclyn Peranteau
05/13/2024
Inspection — Certified Storm Drainage-ST-Fixtures-Finish
Certified
View inspection ↗
04/12/2024
Permit issued — Plumbing
X00382953-I1-PL
03/14/2024
Signed off — Alteration
FILING FOR RELATED MECHANICAL WORK IN CONJUNCTION WITH ALT i APPLICATION # 220684463.
X00382907-I1
02/14/2024
Special inspection requirement — Final
John Field
02/14/2024
Special inspection requirement — HVAC-R and service water piping design and insulation
John Field
02/14/2024
Special inspection requirement — Mechanical Systems
John Field
01/15/2024
Filed — Alteration
FILING FOR RELATED MECHANICAL WORK IN CONJUNCTION WITH ALT i APPLICATION # 220684463.
X00382907-P3
01/12/2024
Special inspection requirement — Mechanical Systems
John Field
01/12/2024
Special inspection requirement — Final
John Field
01/12/2024
Special inspection requirement — HVAC-R and service water piping design and insulation
John Field
11/13/2023
Signed off — Alteration
FILING FOR STRUCTURAL WORK IN CONJUNCTION WITH ALT 1 APPLICATION # 220684463.
X00383507-I1
10/06/2023
Permit issued — Structural
X00383507-I1-ST
09/28/2023
Special inspection requirement — Concrete - Cast-In-Place
John Field
09/28/2023
Special inspection requirement — Post-installed Anchors
John Field
09/28/2023
Special inspection requirement — Final
John Field
09/28/2023
Special inspection requirement — Structural Stability – Alterations of existing buildings
John Field
09/28/2023
Special inspection requirement — Subgrade Inspections
John Field
09/27/2023
Filed — Alteration
FILING FOR STRUCTURAL WORK IN CONJUNCTION WITH ALT 1 APPLICATION # 220684463.
X00383507-P4
08/23/2023
Permit issued — Mechanical Systems
X00382907-I1-MS
08/21/2023
Filed — Alteration
FILING FOR STRUCTURAL WORK IN CONJUNCTION WITH ALT 1 APPLICATION # 220684463.
X00383507-P3
08/07/2023
Special inspection requirement — Structural Stability – Alterations of existing buildings
John Field
08/07/2023
Special inspection requirement — Post-installed Anchors
John Field
08/07/2023
Special inspection requirement — Subgrade Inspections
John Field
08/07/2023
Special inspection requirement — Final
John Field
08/07/2023
Special inspection requirement — Concrete - Cast-In-Place
John Field
06/20/2023
Inspection — Certified Storm Drainage-ST-Piping-Underground
Certified
View inspection ↗
06/12/2023
Permit issued — Plumbing
X00638415-I1-PL
06/09/2023
Filed — Alteration
Construction of on-site underground retention system with associated piping for existing residence and proposed building addition.
X00638415-P1
04/26/2023
Filed — Alteration
FILING FOR STRUCTURAL WORK IN CONJUNCTION WITH ALT 1 APPLICATION # 220684463.
X00383507-P2
04/20/2023
Filed — Alteration
FILING FOR RELATED PLUMBING WORK IN CONJUNCTION WITH APPLICATION # 220684463.
X00382953-P5
04/20/2023
Filed — Alteration
FILING FOR RELATED MECHANICAL WORK IN CONJUNCTION WITH ALT i APPLICATION # 220684463.
X00382907-P2
01/06/2023
Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation
John Field
01/06/2023
Special inspection requirement — HVAC insulation and sealing
John Field
01/06/2023
Special inspection requirement — HVAC-R and service water piping design and insulation
01/06/2023
Special inspection requirement — Final
John Field
01/06/2023
Special inspection requirement — Mechanical Systems
John Field
01/06/2023
Special inspection requirement — Fire-Resistant Penetrations and Joints
John Field
12/30/2022
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
11/01/2022
Permit issued — Plumbing
X00382953-I1-PL
10/03/2022
Filed — Alteration
FILING FOR RELATED PLUMBING WORK IN CONJUNCTION WITH APPLICATION # 220684463.
X00382953-P4
10/03/2022
Filed — Alteration
FILING FOR RELATED MECHANICAL WORK IN CONJUNCTION WITH ALT i APPLICATION # 220684463.
X00382907-P1
10/03/2022
Filed — Alteration
FILING FOR STRUCTURAL WORK IN CONJUNCTION WITH ALT 1 APPLICATION # 220684463.
X00383507-P1
10/03/2022
Filed — Alteration
FILING FOR CONSTRUCTION FENCE AS PER PLANS.
X00383583-P1
09/01/2022
Permit issued — Construction Fence
X00383583-I1-FN
12/02/2021
Filed — Alteration
Construction of on-site underground retention system with associated piping for existing residence and proposed building addition.
X00638415-I1
11/19/2021
Filed — Alteration
FILING FOR RELATED PLUMBING WORK IN CONJUNCTION WITH APPLICATION # 220684463.
X00382953-P3
11/12/2021
Inspection — Pass-Final PL - Underground
Pass
View inspection ↗
Latest 60 of 71 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingPermit IssuedS. TIEGER PLBG. CO., INC04/12/2024
DOB NOWStructuralPermit IssuedKEY CONSTRUCTION PARTNER10/06/2023
DOB NOWMechanical SystemsSigned-offKEY CONSTRUCTION PARTNER08/23/2023
DOB NOWPlumbingSigned-offS. TIEGER PLBG. CO., INC06/12/2023
DOB NOWPlumbingPermit IssuedS. TIEGER PLBG. CO., INC11/01/2022
DOB NOWConstruction FencePermit IssuedKEY CONSTRUCTION PARTNER09/01/2022
DOB NOWPlumbingPermit IssuedS. TIEGER PLBG. CO., INC06/28/2021
BIS—ISSUEDKEY CONSTRUCTION PARTNER08/15/2025
BIS—ISSUEDKEY CONSTRUCTION PARTNER10/19/2023
BIS—ISSUEDKEY CONSTRUCTION PARTNER05/02/2023
BIS—ISSUEDKEY CONSTRUCTION PARTNER09/01/2022
BIS—ISSUEDKEY CONSTRUCTION PARTNER07/29/2021
1 project · most recent 01/14/2026
Gas Water/Sanitary
FiledStatusContractorScope
01/14/2026Permit IssuedS. TIEGER PLBG. CO., INCGas, Water/Sanitary
3 projects · most recent 03/07/2024
General Wiring
FiledStatusContractorScope
03/07/2024CompleteFUSION ELECTL CONTRNG LLCGeneral Wiring
03/07/2024CompleteFUSION ELECTL CONTRNG LLCGeneral Wiring
03/07/2024CompleteFUSION ELECTL CONTRNG LLCGeneral Wiring
1 project · most recent 10/03/2022
Fence
FiledStatusContractorScope
10/03/2022Permit IssuedKEY CONSTRUCTION PARTNERFence
▾Field Inspections (DOB CAP) — 8
DateTypeResultReport
07/05/2024Pass-Final CND-Occupancy InspectionPassView ↗
05/13/2024Certified Storm Drainage-ST-Fixtures-FinishCertifiedView ↗
06/20/2023Certified Storm Drainage-ST-Piping-UndergroundCertifiedView ↗
12/30/2022Pass-Final PL - Up to 3 Requested FloorsPassView ↗
11/12/2021Pass-Final PL - UndergroundPassView ↗
10/19/2021Pass-Final PL - Up to 3 Requested FloorsPassView ↗
10/05/2021Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
08/13/2021Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 62
DateRequirementInspectorRole
01/20/2026Private On-Site Storm Water Disposal Systems-, and Detention Facilities, InstallationJohn Fieldspecial
01/20/2026HVAC insulation and sealing John Fieldenergy_progress
01/20/2026Fire-Resistant Penetrations and JointsJohn Fieldspecial
07/31/2024Fire-Resistant Penetrations and JointsJohn Fieldspecial
07/31/2024Private On-Site Storm Water Disposal Systems-, and Detention Facilities, InstallationJohn Fieldspecial
07/31/2024HVAC insulation and sealing John Fieldenergy_progress
06/04/2024Private On-Site Storm Water Disposal Systems-, and Detention Facilities, InstallationJaclyn Peranteauspecial
05/29/2024Private On-Site Storm Water Disposal Systems-, and Detention Facilities, InstallationJaclyn Peranteauspecial
02/14/2024Mechanical SystemsJohn Fieldspecial
02/14/2024FinalJohn Fieldprogress
02/14/2024HVAC-R and service water piping design and insulationJohn Fieldenergy_progress
01/12/2024HVAC-R and service water piping design and insulationJohn Fieldenergy_progress
01/12/2024FinalJohn Fieldprogress
01/12/2024Mechanical SystemsJohn Fieldspecial
09/28/2023Structural Stability – Alterations of existing buildingsJohn Fieldspecial
09/28/2023Post-installed AnchorsJohn Fieldspecial
09/28/2023FinalJohn Fieldprogress
09/28/2023Subgrade InspectionsJohn Fieldspecial
09/28/2023Concrete - Cast-In-PlaceJohn Fieldspecial
08/07/2023Subgrade InspectionsJohn Fieldspecial
08/07/2023Structural Stability – Alterations of existing buildingsJohn Fieldspecial
08/07/2023Post-installed AnchorsJohn Fieldspecial
08/07/2023Concrete - Cast-In-PlaceJohn Fieldspecial
08/07/2023FinalJohn Fieldprogress
01/06/2023Private On-Site Storm Water Disposal Systems-, and Detention Facilities, InstallationJohn Fieldspecial
Latest 25 of 62.
▾Documents — 176 on file (BIS + DOB NOW)
▸Plans & Drawings22
▸DOB NOWPlans/Sketch - Plumbing8
08/25/2026X00382953-P4Request digital key ↗
08/25/2026X00382953-P5Request digital key ↗
08/25/2026X00382953-P7Request digital key ↗
Showing 3 of 8 on file for this type
▸DOB NOWPlans/Sketch - Structural5
08/23/2026X00383507-P2Request digital key ↗
08/23/2026X00383507-P1Request digital key ↗
08/23/2026X00383507-I1Request digital key ↗
Showing 3 of 5 on file for this type
▸DOB NOWPlans/Sketch - Mechanical Systems4
08/21/2026X00382907-P2Request digital key ↗
08/21/2026X00382907-I1Request digital key ↗
08/21/2026X00382907-P1Request digital key ↗
Showing 3 of 4 on file for this type
▸DOB NOWPlans/Sketch3
08/25/2026X00638415-I1Request digital key ↗
08/25/2026X00638415-P2Request digital key ↗
08/25/2026X00638415-P1Request digital key ↗
▸DOB NOWPlans/Sketch - Construction Fence2
08/23/2026X00383583-I1Request digital key ↗
08/23/2026X00383583-P1Request digital key ↗
▸Applications & Permits27
▸DOB NOWLPC Approval/Permit20
08/25/2026X00382953-P4Open ↗
08/25/2026X00382953-P5Open ↗
08/25/2026X00382953-P6Open ↗
Showing 3 of 20 on file for this type
▸BISPLAN / WORK APPROVAL APPLICATION5
01/10/2023220684463Open ↗
09/06/2022220684463Open ↗
11/29/2021220684463Open ↗
Showing 3 of 5 on file for this type
▸BISWORK PERMIT APPLICATION2
09/07/2022220684463Open ↗
08/04/2021220684463Open ↗
▸Seals & Professional Certifications72
▸DOB NOWProgress Inspector Seal & Signature26
09/22/2026X00382953-P2Open ↗
09/22/2026X00382953-P2Open ↗
09/22/2026X00382953-P2Open ↗
Showing 3 of 26 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature23
09/22/2026X00382953-P2Open ↗
09/22/2026X00382953-P2Open ↗
09/19/2026X00382953-P6Open ↗
Showing 3 of 23 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature22
08/25/2026X00382953-P4Open ↗
08/25/2026X00382953-P5Open ↗
08/25/2026X00382953-P6Open ↗
Showing 3 of 22 on file for this type
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION1
08/07/2019220684463Open ↗
▸Safety & Tenant Protection10
▸DOB NOWTenant Protection Plan8
08/25/2026X00382953-P4Open ↗
08/25/2026X00382953-P6Open ↗
08/25/2026X00382953-P1Open ↗
Showing 3 of 8 on file for this type
▸BISTenant Protection Plan and Notes1
04/20/2021220684463Open ↗
▸BISSTREET TREE CHECKLIST1
06/16/2021220684463Open ↗
▸Environmental & Asbestos18
▸DOB NOWDEP ACP-5: Asbestos Assessment Report17
08/25/2026X00382953-P4Open ↗
08/25/2026X00382953-P3Open ↗
08/25/2026X00382953-P5Open ↗
Showing 3 of 17 on file for this type
▸BISASBESTOS: CERTIFICATION (DEP ACP5)1
04/20/2021220684463Open ↗
▸Energy Compliance4
▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY3
07/26/2023220684463Open ↗
06/16/2021220684463Open ↗
04/20/2021220684463Open ↗
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS1
08/07/2019220684463Open ↗
▸Inspections & Test Reports7
▸BISTECHNICAL REPORT: RESPONSIBILITY6
07/26/2023220684463Open ↗
06/29/2021220684463Open ↗
06/29/2021220684463Open ↗
Showing 3 of 6 on file for this type
▸BISTECHNICAL REPORT: SOIL INSPECTION1
04/20/2021220684463Open ↗
▸Approvals, Objections & Sign-offs4
▸BISLANDMARKS APPROVAL2
08/01/2023220684463Open ↗
04/20/2021220684463Open ↗
▸BISSUPERSEDING LETTER1
09/06/2022220684463Open ↗
▸BISSCHEDULE A - OCCUPANCY / USE1
08/07/2019220684463Open ↗
▸Cost, Insurance & Ownership1
▸BISCOST AFFIDAVIT1
08/07/2019220684463Open ↗
▸Filing & Intake Forms9
▸BISADDITIONAL INFORMATION6
10/02/2023220684463Open ↗
10/02/2023220684463Open ↗
10/12/2022220684463Open ↗
Showing 3 of 6 on file for this type
▸BISBOROUGH INTAKE FORM2
09/06/2022220684463Open ↗
08/04/2021220684463Open ↗
▸BISEFILING COVER SHEET1
08/07/2019220684463Open ↗
▸Other Documents2
▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION2
04/20/2021220684463Open ↗
04/20/2021220684463Open ↗