Zoning and Building Safety Department
Zoning

Please remember that all of the Questions and Answers only apply to properties in Unincorporated Rock Island County. If you live in a city or village please check with their Zoning Department for their rules and regulations.

How can I find you?

The Rock Island County Zoning & Building Office is located at 1504 Third Avenue, Rock Island IL, 61201, on the Third Floor. Office hours are 7:00-10:00 AM and 2:30-4:30 PM, Monday through Friday excluding holidays. From 10:00 AM to 2:30 PM inspectors are in the field.

When is the best time to call?

The Zoning Investigator's normal office hours are between 8:00 AM - 10:00 AM and 2:30 PM - 4:30 PM. Questions and permits may be handled all day, but specific requests for these persons should be made during the hours shown, otherwise, inspectors are in the field daily

What codes has Rock Island County adopted?

Click here to go to the Codes section of our website.

Where can I get Copies of these codes?

• Check the downloads section of this website.

How much land do I need to build a house?

This varies depending on where the property is located. The smallest parcels may be 20,000 square feet (just shy of 1/2 acre). If you are looking at a property that is in the extreme outlying areas, Rock Island County may require a minimum of 40 acres for a building site. Your best bet is contact Greg Thorpe .