A bill for an act relating to county and city regulation of accessory dwelling units.

Iowa's SSB 1182 requires counties and cities to allow at least one accessory dwelling unit (ADU) on single-family residential lots, with specific limitations on local restrictions. It prohibits municipalities from imposing stricter rules on ADUs than on main homes (e.g., size, appearance, parking, or rental use) and bans restrictions based on occupancy relationships, income, or age. The bill mandates that ADU permit applications be approved within 30 days without discretionary review, unless denied in writing with specific reasons. It directly affects homeowners seeking to add secondary housing units, such as in-law suites or rental cottages, by reducing local barriers to construction. The law applies to all counties and cities in Iowa, ensuring consistent rules for ADU development across the state.