A bill for an act relating to county zoning ordinances governing residential buildings.

This bill (SSB 3152) limits county zoning authority over residential construction in unincorporated areas. It prohibits county boards from restricting the construction or development of residential buildings, except for regulations necessary for safety (e.g., fire codes or structural integrity). The law defines "residential building" to include single-family homes, townhouses, and small apartment buildings (up to 12 units per building), but does not allow counties to impose rules that would hinder housing development. This change directly affects county boards of supervisors and developers working outside city limits in Iowa.