Create a Website Account - Manage notification subscriptions, save form progress and more.
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 to email Greg Thorpe.
Show All Answers
The Rock Island County Zoning and Building Office is located at 1504 Third Avenue, Rock Island IL, 61201, on the Third Floor. Office hours are from 8 to 10 am and 3 to 4:30 pm, Monday through Friday, excluding holidays. From 10 am to 3 pm office staff is in the field.
The Building Inspectors' and Zoning Officials' normal office hours are between 7 and 10 am and 2:30 and 4:30 pm. Questions and permits should be made during the hours shown; otherwise, inspectors are in the field daily. Sorry for any inconvenience.
The plans you submit should have enough detail to allow someone with absolutely no knowledge of your project to be able to go build your project. Here are a few things you should have:
The Rock Island County Geographic Information System (GIS) Department assigns all addresses within unincorporated areas. The Department will need a site layout showing property boundaries, where your driveway lies in relation to the main road and if your home is visible from the road. (Under most circumstances, you can usually obtain your address the same day you bring in your site layout).
If your new home is located within the jurisdiction of a municipality, you will need to contact that municipality to obtain an address.
A homeowner can do the work on their home, but we do require proof of liability insurance from contractors who would do the work.
Rock Island County does not charge a fee for contractors to be eligible to do work. We do require proof of liability insurance from all contractors. Plumbers and Roofers must be licensed with the State of Illinois.
Make sure your contractor gets a building permit and you have a written contract with them. Rock Island County requires all contractors to register with the county and provide proof of liability insurance when they pull a permit. We do this to protect the homeowner in case a contractor or their employee would be injured on the homeowner's property. Please remember if your contractor does not get a permit, you could be held liable if they are injured, and you will receive no inspections to insure the work was done according to code. The State of Illinois has a Home Repair and Remodeling Act that requires contractors to provide a written contract.
See the Codes section of the Building Safety Page.
Permits are required for all home improvements except carpet, paint and gutters. Fees vary with the value of the work being done using national averages, including labor. Persons not obtaining a permit PRIOR to beginning a project shall be charged double. No exceptions.
Model building codes do not require Ice and Water Barrier. Only those jurisdictions that specifically require it when they adopt their codes can require it. Rock Island County has had a history of ice damming and driving rains that allow ice and water to get under shingles. When we adopt our codes we do require a barrier. Your insurance company may require paperwork or a letter (PDF) from our office to show that we have adopted this requirement.