Garage conversion rules in Dearborn, 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 Dearborn requires building permits and must meet zoning, egress, insulation, and parking replacement requirements; conversion to a separate rental unit is not allowed.
Dearborn homeowners can convert an attached or detached garage to additional living space such as a family room, home office, or bedroom with proper building permits. The converted space must meet Michigan Residential Code requirements including minimum ceiling height, egress windows in bedrooms, insulation, heating, electrical, and smoke alarms. The zoning code typically requires replacement of off-street parking that the garage provided, which may mean adding a driveway pad or alternate parking. Conversion into a separate rental dwelling unit is not permitted in single-family zones. Exterior changes such as new windows, doors, or siding may need design review in historic districts. Unpermitted conversions create insurance, resale, and safety risks. Sellers must disclose permit history to buyers under Michigan seller disclosure law. A licensed contractor and permit history check are strongly recommended.
Contact your local code enforcement office for specific penalty information.
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Side-by-side rule comparisons with other cities in Wayne County.
See how other cities in Wayne County handle garage conversions.
See how Dearborn's garage conversions rules stack up against other locations.
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