Land use: zoning and growth management; duplexes; permit in single-family residential zones. Amends sec. 102 of 2006 PA 110 (MCL 125.3102) & adds sec. 517.

HB 5584 allows duplexes to be built in any zoning district where single-family homes are permitted, directly affecting homeowners, developers, and local governments in Michigan. The bill requires local governments to treat duplexes the same as single-family homes for permitting and prohibits them from imposing restrictions that would prevent duplex construction - such as minimum unit size requirements, excessive parking mandates, or stricter design rules. It specifically bans requirements like lot coverage limits, setbacks, or height restrictions that would make duplexes impractical, while allowing reasonable, non-discriminatory rules. This policy change aims to increase housing options by making duplex development more accessible in single-family neighborhoods.