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Wilmington, DE Building Safety: Building Inspections (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Inspection hours
8:00 a.m.-5:00 p.m.
Entry requirement
Owner must give free access
Emergency entry
Allowed any time
Refused entry
Official can seek a warrant
Obstruction
Impeding inspector is a violation

Summary

Wilmington's building official can enter buildings and premises to inspect for code compliance only between 8:00 a.m. and 5:00 p.m., unless there's an emergency or the owner requests the visit outside that window.

The building official is hereby authorized to make inspections to determine the condition of buildings, dwellings, and premises... located within this city... For the purpose of making such inspections, the building official is hereby authorized to enter, examine and survey between the hours of 8:00 a.m. and 5:00 p.m. all buildings, dwellings, lands and premises. The owner or occupant... shall give the building official free access... for the purpose of such inspection, examination and survey.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 72).

Full Breakdown

City Code § 4-27 amends the IBC's inspection authority so Wilmington's building official (and any designated code official, including the fire marshal) is authorized to enter, examine, and survey any building, dwelling, land, or premises in the city to check code compliance. The owner or occupant must give free access during the 8:00 a.m.-5:00 p.m. window, though the visit can't be used to harass and must minimize inconvenience. The official can also enter anytime there's an actual emergency threatening public safety, or whenever the owner or occupant asks for an inspection.

Violations & Fines

Impeding the building official during an inspection is itself a chapter violation; if entry is refused, the official can get a warrant on a probable-cause showing under § 4-27(h).

Frequently Asked Questions

Does Wilmington's building inspector need a warrant to enter?
No, not for a routine visit - during the 8:00 a.m.-5:00 p.m. window owners must give free access. A warrant is only needed if entry is refused, per City Code § 4-27(h).
Can the inspector show up any time of day?
Only between 8:00 a.m. and 5:00 p.m. for routine inspections. Outside those hours, the official can only enter for an actual public-safety emergency or if the owner requests the visit.

Sources & Official References

Other rules in Wilmington

Building PermitsSome RestrictionsParking Rules: RV & Boat ParkingSignificant RestrictionsCarbon Monoxide DetectorsSome RestrictionsElevator MaintenanceSome RestrictionsLead PaintSignificant RestrictionsFire Sprinkler RequirementsSome RestrictionsDoor Locking HardwareSome RestrictionsChildcare Center RulesSome RestrictionsPlumbing PermitsSome RestrictionsElectrical PermitsSome RestrictionsNoise Ordinances: Decibel LimitsSome RestrictionsParking Rules: Curb Color RulesSome RestrictionsParking Rules: Commercial & Oversized VehiclesHeavy RestrictionsFence Regulations: Fence Permit RequirementsSome RestrictionsFence Regulations: Retaining WallsSome Restrictions

All Wilmington rules

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