Housing

SF 595 updates Iowa's construction regulations by requiring state building code proposals to include cost impact reports on housing affordability. It prevents counties and cities from imposing additional fees or licensing requirements on licensed contractors (like plumbers and HVAC specialists) for work within their licensed scope. The bill also limits local governments from enforcing stricter stormwater management rules at construction sites than those initially approved in subdivision plans. These changes directly affect contractors, local governments, and homeowners through potential impacts on construction costs and regulatory processes.

This bill mandates that counties and cities in Iowa must allow at least one accessory dwelling unit (ADU) on lots with single-family residences. It directly affects property owners by standardizing and simplifying the process of building ADUs, and local governments by limiting their regulatory authority. The legislation sets statewide parameters, such as allowing ADUs up to 1,000 square feet or 50% of the main house, whichever is larger. It prohibits local ordinances from imposing overly restrictive rules on aspects like design, parking, owner-occupancy, or separate utility connections. Furthermore, it requires local governments to approve compliant ADU permits without discretionary review, following the same timeline as single-family home permits.