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County building permits in Delaware

Select a county to see exactly who issues building permits and open the official permit portal.

New Castle County

New Castle County — Department of Land Use

Sussex County

Sussex County — Building Code Office

Kent County

Kent County — Building Permits

Before you file in Delaware

Does your project need a permit?

A go / no-go answer before you contact the county.

Permit rules by project type

What the county will look for, project by project.

Permit fee estimator

Budget the fee before you open the application.

Statewide overview

See how this state compares with the others we cover.

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