Codes, exemptions & field inspections
This guide translates the available agency record into a preconstruction checklist for structural scope, minor work, and inspection release. The adopted code and the issuing official control when a field condition is disputed.
Regulatory framework
2024 International Building Code, 2024 International Residential Code, 2024 International Existing Building Code, and 2024 International Swimming Pool and Spa Code with New Castle County amendments, effective January 1, 2026. Electrical inspections are regulated by the State of Delaware; the county also enforces applicable county utility and fire-code provisions.
Inspection lane
Schedule, reschedule, or cancel inspections through the New Castle County inspection website, which provides 24/7 access, inspection results, notifications, assigned-inspector information, and estimated inspection time. Inspection questions: (302) 395-5572.
Minor-work playbook
Most construction, improvements, alterations, and repairs require a permit unless specifically exempted by Chapter 6. Listed exempt examples include non-fixed movable fixtures, cases, racks and counters; painting, papering, tiling, carpeting, cabinets, countertops, and similar finish work. Electrical work is not permitted or inspected by the county and instead follows state requirements.
Field rule
A permit exemption generally addresses one narrow construction trigger. It does not automatically waive zoning, land-use, floodplain, shoreline, fire, energy, electrical, utility, septic, or right-of-way requirements. Obtain written confirmation when the project involves a new structure, structural alteration, change in occupancy, or concealed work.
Inspection pipeline
Request with lead time
Schedule, reschedule, or cancel inspections through the New Castle County inspection website, which provides 24/7 access, inspection results, notifications, assigned-inspector information, and estimated inspection time. Inspection questions: (302) 395-5572.
Preserve access
Do not cover framing, reinforcement, wiring, piping, damp-proofing, or life-safety work until the required inspection has been completed and documented.
Close the record
Retain the approved plans, inspection approvals, correction responses, and final certificate or occupancy release with the property file.
Contractor verification
Use the state licensing system to verify active registration, trade credentials, bond status, and liability coverage where available. Match the legal business name to the proposal and permit application.
Planning reference
A building permit is only one part of statutory compliance. Check the local zoning, ordinance, map, or land-use reference before finalizing setbacks, height, lot coverage, access, drainage, or accessory structure placement.
Open planning reference ↗Source trail
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
New Castle County Department of Land Use, Office of Inspections is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact (302) 395-5400 permits/planning; (302) 395-5572 inspections; (302) 395-5555 code enforcement.
N/A; ePlans provides prescreen review, simultaneous discipline review, correction cycles, final review, and email status notifications, but no standard county timeline was published.
Schedule, reschedule, or cancel inspections through the New Castle County inspection website, which provides 24/7 access, inspection results, notifications, assigned-inspector information, and estimated inspection time. Inspection questions: (302) 395-5572.
2024 International Building Code, 2024 International Residential Code, 2024 International Existing Building Code, and 2024 International Swimming Pool and Spa Code with New Castle County amendments, effective January 1, 2026. Electrical inspections are regulated by the State of Delaware; the county also enforces applicable county utility and fire-code provisions. Most construction, improvements, alterations, and repairs require a permit unless specifically exempted by Chapter 6. Listed exempt examples include non-fixed movable fixtures, cases, racks and counters; painting, papering, tiling, carpeting, cabinets, countertops, and similar finish work. Electrical work is not permitted or inspected by the county and instead follows state requirements.
Field sequencing matters
Code compliance is not only a plan-review exercise. Footings, reinforcement, framing, fireblocking, wiring, piping, insulation, weather protection, and life-safety systems each have points where the work must remain accessible. Build the inspection calendar into the trade schedule instead of treating it as a final administrative step.
When a project qualifies for a narrow minor-work exemption, keep a written explanation of why it qualifies and confirm that related zoning, utility, fire, energy, or environmental rules do not create a separate approval requirement.
Closeout file
Keep the approved plan set, inspection approvals, correction responses, contractor license verification, final certificate, and any occupancy release together. A clean record protects the owner, builder, lender, insurer, and future buyer.