Garage conversion rules in Saint Paul, MN — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Saint Paul allows garage conversions to livable space or ADUs with a building permit. Off-street parking replacement may be required depending on transit proximity.
Converting a garage to habitable space in Saint Paul requires a building permit from the Department of Safety and Inspections (DSI). The conversion must comply with the Minnesota State Building Code for habitable space, including requirements for ceiling height (minimum 7 feet), egress windows, insulation, electrical systems, and HVAC. Under Saint Paul Legislative Code Ch. 66, eliminating a garage may trigger off-street parking requirements unless the property is within a quarter mile of a transit stop or in a district with reduced parking minimums. If the conversion creates an ADU, the ADU provisions of the zoning code apply. The structure must meet residential building code standards for occupancy, including fire separation requirements if attached to the principal dwelling. A certificate of occupancy is required before the converted space can be occupied. Historical districts may impose additional review requirements through the Heritage Preservation Commission.
Contact your local code enforcement office for specific penalty information.
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See how Saint Paul's garage conversions rules stack up against other locations.
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