1 county-level rule, plus city-specific rules for 2 cities in Macomb County, Michigan.
Verified from official government sources
Macomb County does NOT regulate accessory dwelling units. Under the Michigan Zoning Enabling Act (PA 110 of 2006, MCL 125.3101 et seq.), zoning authority sits exclusively with home-rule cities, charter townships, and general-law townships. There is no statewide ADU mandate or preemption in Michigan. Each Macomb County jurisdiction — Sterling Heights, Warren, Roseville, Clinton Township, St. Clair Shores, Mount Clemens, Macomb Township, Shelby Charter Township, and others — sets its own rules through its local zoning ordinance.
2 cities in Macomb County have their own accessory structures rules. Each link goes to that city's dedicated page with code citations.
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Macomb County Ordinance Hub →