Garage conversion rules in Milwaukee, WI — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Garage conversions to living space require building permits from DNS and must comply with MCO Chapter 240 (1-2 family) and zoning Chapter 295. May qualify as an ADU.
Wisconsin has no statewide law facilitating garage conversions. Milwaukee may allow conversions with building permits meeting habitable space code under WI Uniform Dwelling Code: ceiling height, ventilation, egress, insulation, electrical, plumbing. Replacement parking typically required since most Wisconsin cities have minimum parking standards. Zoning approval may be needed. HOAs commonly prohibit garage conversions.
Unpermitted conversion: building code enforcement. Must bring to code or restore. Safety violations: immediate correction.
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See how Milwaukee's garage conversions rules stack up against other locations.
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