St. Charles County, MO Animal Ordinances: Veterinary Clinic Zoning (2026)

Where a veterinary clinic can open in unincorporated St. Charles County depends entirely on the underlying zoning district. 135(B)(36) lists "Veterinarian, animal hospital or kennel, if within an enclosed building" as a Permissive Use of the "C2" General Commercial District, meaning no public hearing or Planning and Zoning Commission review is needed there, only compliance with the enclosed-building condition; an outdoor kennel run or open-air treatment yard would not qualify. 510, with the Commission required to file a report within 90 days of the hearing.

That same Agricultural District separately allows boarding stables at a 50-foot property-line setback and kennels at 150 feet, standards a veterinary boarding operation would also need to clear if animals are housed outdoors. 495(C)(5) names "Veterinarian services and animal hospitals" as a specific example of a use that shall not, in any event, be deemed an allowed home occupation, alongside kennels, stables, and eating establishments. That means a veterinarian cannot treat clients from a residence under the county's home-occupation permit; the practice must locate in a district, commercial or agricultural, that lists it as a permissive or conditional zoning use in its own right.