Iowa 2025-2026 Regular Session

Iowa House Bill HF947

Introduced

3/12/25

Caption

A bill for an act relating to county and city regulation of accessory dwelling units.(Formerly HSB 162.)

Impact

The implementation of HF947 seeks to standardize how local governments manage the construction and regulation of ADUs. By prohibiting stricter local regulations on ADUs compared to those on single-family homes, the bill empowers homeowners and fosters a more inclusive approach to housing development. However, the law does allow local governments to adopt more permissive measures if they wish, preserving local autonomy in how they engage with community-specific housing needs. This could lead to a diversification in housing in some areas, enhancing affordability and options for residents.

Summary

House File 947 mandates that counties and cities permit at least one accessory dwelling unit (ADU) on the same lot as a single-family residence. This bill aims to alleviate housing shortages by allowing homeowners to create additional living spaces on their property, thus enhancing residential versatility. The regulations laid out in the bill stipulate that the ADU must comply with specific building standards, should not exceed 1,000 square feet or 50% of the primary residence size, and must not be subjected to more restrictive local ordinances than those applicable to single-family residences. This represents a significant shift in local housing policy, potentially increasing the availability of rental units within existing neighborhoods.

Contention

Despite the potential benefits, the bill may evoke contention among various stakeholders. Local governments may perceive a loss of regulatory power, as they can no longer enforce more stringent rules concerning building aesthetics or occupancy, which some argue are essential to maintaining community character and safety. Additionally, opponents may express concerns regarding the potential for increased density and its impact on resources and infrastructure in areas not adequately prepared for such changes. The balance between encouraging housing development and preserving local control is likely to be a central theme in discussions surrounding the impacts of HF947.