AZ SB1543

Allows municipalities with 200,000-500,000 residents to permit hotel use and multifamily residential housing as ancillary uses in light industrial zoning districts for international headquarters campuses without public hearings.

Requires international headquarters campuses to be at least 40 gross acres, solely owned by a single entity or related entities, and employ more than 1,000 full-time employees earning at least 125% of county median wage.

Mandates recorded restrictions requiring at least 30% of multifamily units to be occupied by international headquarters employees, police officers, firefighters, teachers, veterans, health care workers, or their families, with minimum 90-day lease terms.

Establishes density limits of 27 multifamily residential units per gross acre and 10 hotel rooms per gross acre, with minimum building height of 6 stories (except 2 stories adjacent to single-family residential areas).

Requires developers to designate at least 5% of for-rent multifamily units as affordable housing (low-income or middle-income) for 10 years and restricts ancillary use certificates of occupancy until the international headquarters building receives a building permit and substantial construction begins.