AZ HB2719

Municipalities with 75,000+ residents must authorize duplexes, triplexes, fourplexes, and townhomes as permitted uses by January 1, 2026, in single-family zones within one mile of the central business district and in at least 20% of new developments over 10 contiguous acres.

Municipalities cannot restrict middle housing to less than two floors, require floor area ratios below 50%, impose more restrictive permitting than single-family dwellings, require owner occupancy, mandate commercial building codes or fire sprinklers, or require more than one parking space per unit.

The requirement does not apply to unincorporated areas, areas lacking urban services or water/sewer infrastructure, areas near public or military airports, or areas designated as historic (by national register, municipal designation, or as historical significance districts).

If a municipality fails to adopt required regulations by January 1, 2026, middle housing becomes automatically permitted on all single-family zoned lots without limitations.

Utility providers have the right to review and approve site plans for developments built under this section.