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Two stories - detached, small or mid-size
2237 NORTON AVENUE
BRONX · Castle Hill-Unionport · BIN 2021236
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1935Year Built
2Stories
A1Building Class
R5Zoning
1,440 sfGross Floor Area
1Units
0 Open Violations
Two stories - detached, small or mid-size · Owner of record: NI28 LLC · 5,000 sf lot · 0.29 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralPlumbing
Permit Issued — active, not yet Signed-off
RoofUnder Construction14p · 1 filing · 20 docs
Floor 3Under Construction15p · 1 filing · 20 docs
Floor 2Under Construction13p · 1 filing · 20 docs
Floor 1Under Construction29p · 1 filing · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
3603 BARNES AVENUE907/08/2026
ZEFI103/22/2026
JV FAST CONSTRUCTION103/22/2026
NI28403/21/2026
NI28LLC203/21/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
06/22/2022$550K—Private party → NI28 LLC$382/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
GRID DRAFTING AND CONSULTING LLC410/24/2025
MJE PROFESSIONAL SERVICES107/18/2023
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
GRID DRAFTING AND CONSULTING LLC803/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
ZEFI & CO. LLCGeneral Contractor404/09/2026
JV FAST CONSTRUCTION LLCGeneral Contractor207/08/2026
DONE RIGHT HOME IMPROVEMEGeneral Contractor107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
INTERNATIONAL GEOTEHCNICA1795306/20/2025
Building Lifecycle
All (34)Filed (6)Permit Issued (7)Signed Off (1)Violation (3)Special Inspection (17)
04/15/2026
Violation issued (ECB, closed)
Construction
03/13/2026
Permit issued — Construction Fence
X00883882-I1-FN
02/22/2026
Violation issued (ECB, closed)
Construction
02/08/2026
Violation issued (ECB, closed)
Construction
01/08/2026
Permit issued — Foundation
X01194061-S6-FO-EA
01/02/2026
Permit issued — General Construction
X01194061-I1-GC
12/19/2025
Permit issued — Structural
X01194061-S2-ST
11/07/2025
Special inspection requirement — Permanent certificate
10/24/2025
Filed — New Building
X01194061-S3
10/24/2025
Special inspection requirement — HVAC-R and service water heating equipment
10/24/2025
Special inspection requirement — Maintenance information
10/24/2025
Special inspection requirement — HVAC-R and service water heating system controls
10/24/2025
Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation
10/24/2025
Special inspection requirement — HVAC-R and service water piping design and insulation
10/24/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
06/20/2025
Filed — New Building
X01194061-S6
06/20/2025
Filed — New Building
X01194061-S2
06/13/2025
Special inspection requirement — Concrete - Cast-In-Place
MICHAEL KARANTINIDIS, P.E.
06/13/2025
Special inspection requirement — Subgrade Inspections
MICHAEL KARANTINIDIS, P.E.
06/13/2025
Special inspection requirement — Subsurface Conditions – Fill Placement & In-Place Density
MICHAEL KARANTINIDIS, P.E.
06/13/2025
Special inspection requirement — Subsurface Investigations (Borings/Test Pits)
SAMER ABOU-GHAIDA
06/13/2025
Special inspection requirement — Final
MICHAEL KARANTINIDIS, P.E.
06/13/2025
Special inspection requirement — Footing and Foundation
MICHAEL KARANTINIDIS, P.E.
06/02/2025
Special inspection requirement — Concrete - Cast-In-Place
MICHAEL KARANTINIDIS, P.E.
06/02/2025
Special inspection requirement — Structural Cold-Formed Steel
MICHAEL KARANTINIDIS, P.E.
06/02/2025
Special inspection requirement — Masonry
MICHAEL KARANTINIDIS, P.E.
04/08/2025
Filed — New Building
X01194061-I1
03/12/2025
Special inspection requirement — Final
MICHAEL KARANTINIDIS, P.E.
02/20/2025
Signed off — Full Demolition
X00861917-I1
02/06/2025
Permit issued — Full Demolition
X00861917-I1-FD
01/30/2025
Permit issued — Construction Fence
X00883882-I1-FN
05/24/2024
Permit issued — Construction Fence
X00883882-I1-FN
07/18/2023
Filed — Alteration
PROPOSED CONSTRUCTION FENCE. NO CHANGE TO USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.
X00883882-I1
05/24/2023
Filed — Full Demolition
X00861917-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWConstruction FencePermit IssuedZEFI & CO. LLC03/13/2026
DOB NOWFoundationPermit IssuedZEFI & CO. LLC01/08/2026
DOB NOWGeneral ConstructionPermit IssuedZEFI & CO. LLC01/02/2026
DOB NOWStructuralPermit IssuedZEFI & CO. LLC12/19/2025
DOB NOWFull DemolitionSigned-offJV FAST CONSTRUCTION LLC02/06/2025
DOB NOWConstruction FencePermit IssuedJV FAST CONSTRUCTION LLC01/30/2025
DOB NOWConstruction FencePermit IssuedDONE RIGHT HOME IMPROVEME05/24/2024
1 project · most recent 07/18/2023
Fence
FiledStatusContractorScope
07/18/2023Permit IssuedZEFI & CO. LLCFence
▾Special Inspection Requirements (DOB NOW) — 17
DateRequirementInspectorRole
11/07/2025Permanent certificate—energy_progress
10/24/2025HVAC-R and service water heating equipment—energy_progress
10/24/2025Maintenance information—energy_progress
10/24/2025HVAC-R and service water heating system controls—energy_progress
10/24/2025Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation—special
10/24/2025HVAC-R and service water piping design and insulation—energy_progress
10/24/2025Fire-Resistant Penetrations and Joints—special
06/13/2025Concrete - Cast-In-PlaceMICHAEL KARANTINIDIS, P.E.special
06/13/2025Subgrade InspectionsMICHAEL KARANTINIDIS, P.E.special
06/13/2025Subsurface Conditions – Fill Placement & In-Place DensityMICHAEL KARANTINIDIS, P.E.special
06/13/2025Subsurface Investigations (Borings/Test Pits)SAMER ABOU-GHAIDAspecial
06/13/2025FinalMICHAEL KARANTINIDIS, P.E.progress
06/13/2025Footing and FoundationMICHAEL KARANTINIDIS, P.E.progress
06/02/2025Concrete - Cast-In-PlaceMICHAEL KARANTINIDIS, P.E.special
06/02/2025Structural Cold-Formed SteelMICHAEL KARANTINIDIS, P.E.special
06/02/2025MasonryMICHAEL KARANTINIDIS, P.E.special
03/12/2025FinalMICHAEL KARANTINIDIS, P.E.progress
▾Documents — 52 on file (BIS + DOB NOW)
▸Plans & Drawings7
▸DOB NOWPlans/Sketch7
08/23/2026X00861917-I1Request digital key ↗
08/23/2026X00883882-I1Request digital key ↗
08/18/2026X01194061-P1Request digital key ↗
Showing 3 of 7 on file for this type
▸Applications & Permits1
▸BISPLAN / WORK APPROVAL APPLICATION1
09/13/2023220742490Open ↗
▸Zoning, Tax Lot & Property Records3
▸DOB NOWZD1: DOB Zoning Diagram1
08/13/2026X01194061-I1Open ↗
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026X01194061-I1Open ↗
▸DOB NOWZoning Exhibit form (1-5)1
08/13/2026X01194061-I1Open ↗
▸Seals & Professional Certifications21
▸DOB NOWSpecial Inspector Seal & Signature10
08/28/2026X01194061-P1Open ↗
08/28/2026X01194061-P1Open ↗
08/28/2026X01194061-P1Open ↗
Showing 3 of 10 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature6
08/23/2026X00883882-I1Open ↗
08/18/2026X01194061-S2Open ↗
08/18/2026X01194061-P1Open ↗
Showing 3 of 6 on file for this type
▸DOB NOWProgress Inspector Seal & Signature4
08/28/2026X01194061-P1Open ↗
08/26/2026X01194061-S2Open ↗
08/24/2026X01194061-S6Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWCONTRACTOR SEAL & SIGNATURE1
08/13/2026X00861917-I1Open ↗
▸Trade Schedules & Equipment5
▸DOB NOWElectric Cut-Off1
08/13/2026X00861917-I1Open ↗
▸DOB NOWWater Cut-Off1
08/13/2026X00861917-I1Open ↗
▸DOB NOWGas Cut-Off1
08/13/2026X00861917-I1Open ↗
▸DOB NOWSewer Cut-Off1
08/13/2026X00861917-I1Open ↗
▸DOB NOWDEP: Sewer Certification (Sanitary/Storm)1
08/13/2026X01194061-I1Open ↗
▸Safety & Tenant Protection2
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan1
08/13/2026X01194061-I1Open ↗
▸DOB NOWStreet Tree Checklist1
08/18/2026X01194061-I1Open ↗
▸Environmental & Asbestos2
▸DOB NOWDEP ACP-5: Asbestos Assessment Report1
08/23/2026X00861917-I1Open ↗
▸DOB NOWRodent Control1
08/13/2026X00861917-I1Open ↗
▸Inspections & Test Reports2
▸DOB NOWTR4 Test Report and Plot Diagram1
08/13/2026X01194061-S6Open ↗
▸DOB NOWSOIL REPORT1
08/13/2026X01194061-S6Open ↗
▸Filing & Intake Forms1
▸BISEFILING COVER SHEET1
09/13/2023220742490Open ↗
▸Other Documents8
▸DOB NOWProperty Ownership Certification2
08/23/2026X00861917-I1Open ↗
08/18/2026X01194061-I1Open ↗
▸DOB NOWAdjoining Owners Notification1
08/13/2026X01194061-S6Open ↗
▸DOB NOWCommunity Board Notification1
08/13/2026X00861917-I1Open ↗
▸DOB NOWFull Demo: 10-Day Notice1
08/13/2026X00861917-I1Open ↗
▸DOB NOWStructure Photographs1
08/13/2026X00861917-I1Open ↗
▸DOB NOWSite Survey: Initial1
08/13/2026X01194061-I1Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1
08/13/2026X01194061-I1Open ↗