ADU rules in Kent County, MI — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Kent County does not zone land. Whether you may build an accessory dwelling unit (ADU) is set by your city, village, or township under the Michigan Zoning Enabling Act. Check your local zoning ordinance and planning department, not the county.
Under the Michigan Zoning Enabling Act (MCL 125.3201), each local unit of government may regulate the use of land and structures by zoning ordinance. In Kent County virtually all land sits inside a city, village, or zoned township, so ADU permission, size, and owner-occupancy rules vary by municipality. Grand Rapids, Kentwood, and Cascade, Caledonia, and other townships each set their own standards. Contact your local planning/zoning department to confirm whether an ADU is a permitted or special-use in your district before designing one.
Building or occupying an unpermitted ADU is a municipal zoning violation (typically a civil infraction) prosecuted by your city or township, with fines and an order to remove or vacate the unit.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Kent County, MI
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Kent County, MI
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Kent County, MI
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See how Kent County's adu rules rules stack up against other locations.
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