Garage conversion rules in Lee's Summit, MO — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Lee's Summit allows garage conversions with a building permit, but the converted space must meet the adopted 2018 residential code for habitable rooms and the home must keep its required off-street parking.
Converting a garage into living space in Lee's Summit requires a building permit from Development Services. The new room must meet Chapter 7's adopted 2018 International Residential Code for habitable space, including ceiling height, egress, light and ventilation, insulation, and electrical work under the 2017 National Electrical Code. Because the Unified Development Ordinance sets minimum off-street parking for dwellings, homeowners generally must provide replacement parking when a garage is removed. Zoning review confirms the use and setbacks. If the conversion creates a separate dwelling, the city's ADU standards apply.
An unpermitted conversion is a code violation; the city can require the space to be brought to code or restored to a garage. Electrical or egress defects must be corrected immediately.
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