O'Fallon, MO Rental Property Rules: Repairs & Habitability (2026)

Section 525.030 authorizes the Code Official to inspect every rental dwelling unit and common area in O'Fallon to confirm it meets the health and safety requirements of the city's Property Maintenance Code, the 2021 International Property Maintenance Code adopted at Section 500.060. Section 525.040 then makes it unlawful for an owner, agent or tenant to occupy or move furniture into a rental unit before the Code Official issues a rental occupancy permit; that permit follows a completed inspection and property maintenance report under Section 525.060 and stays valid for twelve months.

The underlying property maintenance standards enforced during that inspection include Section 602.3's requirement that landlords supply heat maintaining at least 68 degrees Fahrenheit in habitable rooms, bathrooms and toilet rooms from January 1 through December 31, Section 304.7's requirement that roofs and gutters stay sound and free of leaks, and Section 302.7's requirement that accessory structures like fences and sheds stay structurally sound. If practical difficulties keep a unit from full compliance, Section 525.080 lets the Code Official issue a ninety-day temporary conditional permit backed by an escrow of at least $250, extendable once for another ninety days.

The permit sets a maximum occupant count under Section 525.070, and Section 525.090 lets the Director of Community Development revoke a permit after notice and a hearing if the unit stops meeting Code standards, if a nuisance goes unabated, if the structure is condemned, or if it houses more people than the permit allows.