Illinois permit portals

4 official permit authorities in Illinois — direct links to the portals where contractors actually file.

Aurora — City of Aurora Division of Building and Permits

Kane County

Chicago — Chicago Department of Buildings

Cook County

Naperville — City of Naperville Building Permits (Transportation, Engineering & Development)

DuPage County

Rockford — City of Rockford Building Department (Construction & Development Services)

Winnebago County

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