Garage conversion rules in Grand Rapids, MI — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Converting a garage to living space in Grand Rapids requires building permits and must meet building code standards for habitable rooms. Replacement parking may be required depending on the zoning district.
Garage conversions in Grand Rapids require a building permit from the city. The converted space must meet Michigan Residential Code requirements for habitable rooms including minimum ceiling height, natural light and ventilation, insulation, emergency egress, and smoke detectors. The zoning ordinance requires a minimum number of off-street parking spaces per dwelling unit. Converting a garage may trigger a need for replacement parking on the property. ADU conversions within garages follow the city's ADU regulations.
Unpermitted garage conversions may result in code violations, fines, and orders to restore the garage or obtain retroactive permits.
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See how Grand Rapids's garage conversions rules stack up against other locations.
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