Building Permits in Wilmington, DE
Check permit requirements for home improvement projects in Wilmington. Select a project type below to see local requirements, estimated fees, and how to apply.
Key Exemptions in Wilmington
These projects typically don't require a building permit in Wilmington:
Cosmetic bathroom renovations (paint, tile, fixtures in same location) do not require a permit in Wilmington, DE.
Freestanding decks not exceeding 30 inches above grade do not require a building permit in Wilmington, DE.
Replacing a light fixture or outlet in-kind does not require an electrical permit in Wilmington, DE.
Fences 6 feet or under do not require a building permit in Wilmington, DE.
Small detached garage/carport structures (120 sq ft or less) may be treated as exempt accessory structures in Wilmington, DE.
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Check Your Project →Wilmington Building Department
Permit Guides
Read our in-depth guides for common home improvement projects: