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Short-Term Rental Regulations
in Saint Charles County, MO

Last verified: March 2026 · Report an update

Zoning & Conditions

At the county level, lodging establishments must pass safety/sanitary inspections and operate in accordance with state laws. In the City of St. Charles, residential STRs require a 500-foot buffer from other STRs, mandatory noise-monitoring devices, off-street parking (one space per bedroom), and are currently subject to a cap that prevents new residential applications.

How to Obtain a Permit

1. Register the facility with the St. Charles County Convention & Sports Facilities Authority to pay the 5% room tax. 2. For lodging establishments (5+ rooms), submit a written permit application to the Regulatory Authority with a $450 fee. 3. Pass a safety and sanitation inspection prior to permit approval; permits are renewed every two years.

Official Resources

Official Saint Charles County STR regulation source

Frequently Asked Questions

Are short-term rentals allowed in Saint Charles County, MO?
At the county level, lodging establishments must pass safety/sanitary inspections and operate in accordance with state laws. In the City of St. Charles, residential STRs require a 500-foot buffer from other STRs, mandatory noise-monitoring devices, off-street parking (one space per bedroom), and are currently subject to a cap that prevents new residential applications.
Is a permit required to operate a short-term rental in Saint Charles County?
Yes, a permit is required to operate a short-term rental in Saint Charles County. 1. Register the facility with the St. Charles County Convention & Sports Facilities Authority to pay the 5% room tax. 2. For lodging establishments (5+ rooms), submit a written permit application to the Regulatory Authority with a $450 fee. 3. Pass a safety and sanitation inspection prior to permit approval; permits are renewed every two years.
How do I get a short-term rental permit in Saint Charles County?
1. Register the facility with the St. Charles County Convention & Sports Facilities Authority to pay the 5% room tax. 2. For lodging establishments (5+ rooms), submit a written permit application to the Regulatory Authority with a $450 fee. 3. Pass a safety and sanitation inspection prior to permit approval; permits are renewed every two years.

Disclaimer

This information is for general reference only and may not reflect the most current regulations. STR regulations change frequently. Always verify requirements with official local government sources before operating a short-term rental.

Last verified: March 2026 · Suggest a correction