ADU rules in Sterling Heights, MI — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Michigan has no statewide ADU mandate. Sterling Heights ADU policies depend on local zoning. Some Michigan cities have adopted ADU-friendly ordinances.
Michigan does not have a statewide ADU mandate. ADU permissibility depends entirely on Sterling Heights zoning code. Some Michigan cities (Ann Arbor, Grand Rapids, Detroit) have adopted ADU-friendly zoning allowing accessory dwelling units on residential lots. Others prohibit additional dwelling units in single-family zones. Where allowed, ADUs typically must meet size limits (600 to 800 sq ft), setback requirements, and may have owner-occupancy rules. A building permit is required. Parking requirements may apply.
Unpermitted ADU: standard building code enforcement. Zoning violation: cease-and-desist + fines. Must bring to code or remove.
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Side-by-side rule comparisons with other cities in Macomb County.
See how other cities in Macomb County handle adu rules.
See how Sterling Heights's adu rules rules stack up against other locations.
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