water; residential dwelling units

SB 1529 requires new residential building permit applicants in Arizona's active water management areas to obtain either a "certificate of assured water supply" from the state water department or a written commitment from a designated water provider (city, town, or private company), plus pay specific water fees. It applies to all new residential dwelling units (including mobile homes used as primary residences) but exempts projects with zoning approvals or applications submitted by September 30, 2026. The bill ties permit approval directly to verified water availability, ensuring developers demonstrate access to a reliable water source before construction begins. This affects developers, homebuilders, and homeowners seeking permits for new residential properties in designated water management zones.