Garage conversion rules in Dakota County, MN — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Converting a garage into living space is a municipal zoning and building matter in Dakota County. Cities regulate it under Minn. Stat. 462.357 and the Minnesota State Building Code. You will generally need a city building permit; some cities require you to keep off-street parking.
Dakota County does not regulate garage conversions on incorporated land. Turning garage space into a bedroom, office, or apartment changes the building's use and triggers your city's zoning review plus a building permit under the Minnesota State Building Code, adopted statewide under Minn. Stat. 326B. Cities commonly require conversions to meet egress, insulation, and ceiling-height standards, and many require replacement off-street parking so the lot still meets its minimum. Whether a converted garage may be rented as a separate unit is also a city decision. Contact your city building department before starting work.
An unpermitted garage conversion can be cited by the city, which may order the work reversed, deny occupancy, or impose fines. Penalties and enforcement are set by each city, not the county.
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