ADU rules in Columbia, MO — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Columbia regulates accessory dwelling units through zoning. Missouri has no statewide ADU mandate. Rules vary by city. Dillon’s Rule limits non-charter cities.
Missouri has no statewide ADU mandate. Columbia regulates accessory dwelling units through local zoning. Kansas City has explored ADU-friendly policies. Dillon’s Rule limits non-charter city authority - charter cities have broader power to permit ADUs. Common conditions: maximum size (600 to 800 sq ft), setback requirements, owner-occupancy may be required. Building permits required. HOAs commonly prohibit ADUs.
Unpermitted ADU: standard building code enforcement. May require demolition or legalization. Occupying unpermitted dwelling: code violation.
Columbia, MO
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Columbia, MO
Columbia regulates electric vehicle charging infrastructure for residential and commercial properties. Building codes may require EV-ready parking in new con...
Columbia, MO
Columbia regulates overnight parking on public streets. Many areas restrict parking between certain hours or require permits for overnight street parking.
Columbia, MO
Columbia requires pool barriers meeting safety codes to prevent drowning. Fences must be at least 4 to 5 feet tall with self-closing, self-latching gates.
Columbia, MO
Columbia requires permits for retaining walls above a certain height, typically 4 feet. Engineering review may be required for taller walls.
Columbia, MO
Columbia restricts or prohibits intentional feeding of wildlife including deer, coyotes, and bears. Feeding wildlife creates public safety hazards and nuisan...
See how Columbia's adu rules rules stack up against other locations.
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