LOCATION · VERIFIED Address confirmed by Peter 2026-05-17

Location details

The lot

Address634 Grant Avenue, Hockessin, DE 19707
CountyNew Castle County (NCC)
StateDelaware
RegionMid-Atlantic, northern Delaware
IECC climate zone4A — Mixed-Humid (cooling-dominated summer, mild-cold winter, high humidity)
Parcel IDPending — pull from NCC Recorder of Deeds parcel search
ZoningPending — confirm with NCC Department of Land Use

Authority Having Jurisdiction (AHJ)

AuthorityNew Castle County Department of Land Use
Address87 Reads Way, New Castle, DE 19720
Permits & inspections(302) 395-5400
Inspection scheduling(302) 395-5515 · M–F 8 a.m.–11 a.m. · or 24/7 online
Code enforcement(302) 395-5555
Online submissionePlans (plan review) + eApply (permit applications)
Websitenewcastlede.gov/Permits-Inspections

Code basis (NCC + Delaware state)

Building / Residential2024 IBC + 2024 IRC — effective Jan 1, 2026 (NCC just adopted)
Plumbing2021 IPC — effective Jan 1, 2024
Mechanical2021 IMC — effective Jan 1, 2024
Fuel Gas2021 IFGC — effective Jan 1, 2024
Energy2024 IECC + ASHRAE 90.1-2022 — Delaware-wide baseline updated April 2026 (per DNREC); confirm with NCC for local implementation timing
Local amendmentsNCC Code Chapter 6

Note on code currency: NCC's IBC/IRC moved from 2021 to 2024 on January 1, 2026. The IPC/IMC/IFGC sit at 2021 until the next adoption cycle. Plan reviewers may apply the version in force at permit submission, so timing matters if a permit straddles a January adoption date.

Schools

DistrictRed Clay Consolidated School District — Delaware's largest, ~14,500 students across northern NCC
Likely elementary feedersNorth Star Elementary · William Cooke Jr. Elementary (both in Hockessin)
Websiteredclayschools.com

Fire / EMS

Fire companyHockessin Fire Company · Station 19 (volunteer, Fire + Rescue + EMS)
Address1225 Old Lancaster Pike, Hockessin, DE 19707
Phone(302) 239-7159
Websitehockessin19.com

Insurance + NFPA 855 note: distance to nearest fire station affects both insurance underwriting class and the AHJ's posture on lithium battery storage (LDD-30 Zone 3). Pull the actual driving distance from 634 Grant Ave to Station 19 when underwriters ask.

Utilities

ElectricDelmarva Power (default utility) · third-party suppliers like Clearview Energy available
WaterArtesian Water Company (serves Delmarva Peninsula incl. most of NCC residential) · confirm specific lot service vs. private well
SewerPending — confirm NCC public sewer vs. private septic for this lot
GasPending — Delmarva Power gas service vs. propane vs. all-electric

Note: the LDD set assumes all-electric (heat pump + radiant slab + solar PV + battery), so gas service may be moot. But verify whether the lot has existing gas service for resale-value purposes.

Floodplain & site context

StormwaterDNREC sediment + stormwater program; NCC site/civil submittal required for stream-adjacent build
FFE252.4 (per LDD-01 Structural) — above floodplain study line
Floodplain toolDelaware Flood Planning Tool
DNREC site evaluationNCC contact: (302) 739-9947 (Dover office serves Kent + New Castle)

Still to verify with Peter

Sources