This bill:

• defines terms;
• amends requirements for a modified feasibility request related to a proposed municipal incorporation;
• clarifies standards for county and municipal land use regulations and requirements;
• modified requirements for an ordinance establishing a planning commission;
• modifies planning commission powers and duties;
• modifies the process for reviewing and approving a new or unlisted business use;
• establishes requirements for regulating structure height;
• requires a county or municipal legislative body to make a decision on proposed land use regulation if the planning commission fails to make a timely recommendation;
• requires counties, municipalities, and special districts to adopt a written plan, beginning on January 1, 2028, for determining the reasonable future water requirement of the public before imposing a water exaction (written plan);
• requires the state engineer to make rules to establish standards for the written plan;
• addresses exaction for water and a land use authority's review of a land use application;
• modifies the requirement to place certain infrastructure completion assurances in an interest-bearing account;
• establishes requirements relating to development agreements;
• modifies the burden of proving that a land use authority's decision was arbitrary, capricious, or illegal;
• addresses requirements relating to an appeal or variance hearing;
• prohibits a legislative body from acting as an appeal authority;
• modifies the standard of review of a land use authority's decision to deny or approve a land use application;
• modifies appeal requirements;
• requires a specified municipality to allow a detached accessory dwelling unit as a permitted use in certain zones;
• clarifies notice requirements for a proposed county land use ordinance that is ministerial in nature;
• modifies a county's authority to deny an applicant a building permit or certificate of occupancy if the applicant has not completed an infrastructure improvement; and
• makes technical and conforming changes.