Rock Island County Zoning & Building Safety reviews plans, issues building and occupancy permits and inspects construction, but only in unincorporated Rock Island County. Of the county’s 141,869 residents (latest Census estimate), 16,815 live in that unincorporated balance; the most populous cities, Moline (42,362), Rock Island (36,225) and East Moline (20,453), have their own departments.
This guide covers the county’s permits for unincorporated land and the City of Rock Island. The county’s pages give different office hours, so call 309-558-3771 before visiting.
What a county permit needs in Rock Island County
A new-home permit needs septic approval from Environmental Health (Rock Island County Health Department), a site layout, two sets of blueprints, engineered truss drawings stamped by an Illinois-licensed engineer, a contractor list, an erosion control plan and ResCheck or ComCheck.
No structure may be occupied, even for storage, before an occupancy permit is issued; fines can reach $1500 per day. No work may be placed or built in a road right-of-way without prior approval from the highway authority for that road.
Short on time to read all of this?
Get a free quote →Illinois leaves building codes to local government, but since 1 January 2025 any local code must regulate structural design at least as strictly as baseline editions of the International Building, Existing Building and Residential Codes, and where no code was adopted the statute sets minimums for commercial buildings and new homes (Public Act 103-0510). Illinois codes and the statewide baseline
Who handles permitting in Rock Island County?
| Office | Handles | Contact |
|---|---|---|
| Zoning & Building Safety | Plans, building and occupancy permits, inspections, unincorporated areas; 1504 Third Avenue, Room 305, Rock Island, IL 61201 | 309-558-3771 |
| Rock Island County Health Department | Private sewage program: septic inspections, consultations, install or repair applications; 2112 25th Ave., Rock Island, Illinois 61201 | (309) 793-1955 |
| City of Rock Island Inspection Division | Permits inside the city; 1528 Third Avenue, Rock Island, IL 61201 | (309) 732-2910; Monday - Friday, 8:00 am - 3:30 pm |
Contractor registration in Rock Island County
Contractors working in unincorporated Rock Island County must register with Zoning and Building Safety each year, renewing March 1, with proof of liability insurance, a $10,000 compliance bond, a registration fee and any state licence. Rock Island County must be named certificate holder.
Not sure this scope needs a permit?
Get a free quote →Illinois licenses plumbers through the Department of Public Health and roofing contractors through the Department of Financial and Professional Regulation; there is no state general contractor or electrician licence, and many jurisdictions require local registration. Contractor credentials in Illinois
Rock Island County permit costs and fees
- Building permits: based on contractors’ bids; anyone who starts work before getting a permit is charged double.
- Plumbing and gas inspections: $12 per opening; the Illinois-licensed plumber pays the plumbing fee.
- Rezoning or special use to AG-1, AG-2, SE-1, SE-2, R-1 or PUD on 5 acres or less: $400; commercial and industrial districts $800.
- Variances: common variances $300, administrative variances $150, plus the newspaper legal notice cost.
- LESA Resource Review: $400 plus $15 per acre for a rezoning or special use permit in an AG district, forwarded to the Rock Island County Soil & Water Conservation District.
Rather talk it over?
Call 1-855-478-4290 →How to get a building permit in Rock Island County
Every city and village has its own department.
New homes need Environmental Health approval first.
By mail, email or in person; typical residential review is 3-5 business days.
Only cash or check is accepted.
Permits are valid for 180 days if work starts within 30 days of issue; it can be extended once for 180 days on written request.
A building permit carries a validity period set by the county or city that issues it; confirm the expiry on phased or delayed work before it passes. Permit validity in Illinois
Building codes in unincorporated Rock Island County
The county uses the 2021 International Building and Residential Codes with local amendments, the 2020 National Electrical Code and the 2024 Illinois Energy Conservation Code (effective Nov 30, 2025). Fire codes are set by the fire protection district and/or OSFM. Ice and water barrier is required on roofs.
Inspections in Rock Island County
Book an inspection by calling the Zoning and Building Department or leaving a message on the inspector’s voicemail. Calls before 10 am can usually be inspected the same day; calls after 10 am are done the following business day.
Rather not deal with the Rock Island County building department?
Get a free quote →Permits in the City of Rock Island
The City of Rock Island uses an online permitting and inspection portal, Citizen Self Service. Contractors must register and file all permits online, as mail-in applications are no longer accepted. Many projects also need a Public Works grading and drainage permit.
Official Rock Island County permitting resources
These are the primary sources behind this guide. Codes, fee schedules and procedures change — confirm the position for your filing date.
- Rock Island County Zoning & Building Safety
- Rock Island County building permits
- Rock Island County contractor information
- Rock Island County building codes
- Rock Island County zoning fees
- Rock Island County Health Department water and sewer
- City of Rock Island grading and drainage permits
Want this handled start to finish?
Get a free quote →Frequently asked questions
Can I store things in a new building before the occupancy permit?
No. In unincorporated Rock Island County even storing belongings counts as occupying; fines can reach $1500 per day.
How long is a Rock Island County permit valid?
180 days if work starts within 30 days of issue, with one 180-day extension on written request.
Can I mail a permit application to the City of Rock Island?
No. The city no longer accepts mail-in applications; contractors register and file online.
Simplify Rock Island County permitting with Alliance Permitting
Inspections are where schedules slip.
Get a free quote →- Confirm whether the county or a city or village has the parcel, and which office to file with
- Line up the health, highway and floodplain approvals that come before the building permit
- File with the right office and keep inspections on schedule
Alliance Permitting is a permit documentation and submission company in Illinois. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.
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More Illinois permitting guides
This guide is provided by Alliance Permitting for general information about Rock Island County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.