Short-term rental permit rules in O'Fallon, IL — also called Airbnb permits, vacation rental licenses, or STR registration — list the application steps, fees, and operating requirements for hosting.
St. Clair County has no dedicated short-term rental permit. In unincorporated areas, an occupancy permit and inspection are required on any change of rental occupancy. Cities like Belleville, O'Fallon and Fairview Heights set their own STR/lodging rules.
Illinois has no statewide short-term rental licensing system, so regulation is local. St. Clair County does not license Airbnb-style rentals directly, but its Building & Zoning Occupancy Program requires an occupancy permit for residential structures in the unincorporated county whenever occupancy changes, including rentals and leases. The property must pass an inspection first. Inside municipalities (Belleville, East St. Louis, O'Fallon, Fairview Heights, Cahokia Heights), the city or village governs any rental or lodging permit. Always confirm zoning district use with the County Zoning Department before renting a home short-term in the unincorporated area.
Occupying or renting without a required county occupancy permit is a zoning/building violation; the Building & Zoning Department can order correction and refuse approval until inspection passes.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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