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Bill

HB 2928

accessory dwelling units; requirements

57th Legislature - First Regular Session Introduced by Michael Carbone and 4 co-sponsors

Arizona law now modifies ADU construction requirements to reduce barriers and increase housing options for property owners statewide.

Signed by Governor
0
WeVote Research Nonpartisan
Bill Summary · HB 2928

Legislative bill overview

HB 2928 modifies Arizona's regulations governing accessory dwelling units (ADUs) by adjusting requirements for their construction and permitting. The bill recently passed both chambers and was signed by the Governor in May 2025, becoming law.

Why is this important

ADUs are increasingly used to address housing affordability and supply shortages by allowing homeowners to create additional rental units on single-family residential properties. Changes to ADU requirements directly affect housing availability, property development costs, and local zoning enforcement across Arizona communities.

Potential points of contention

  • Local control vs. state mandates: The bill may override local zoning ordinances, creating tension between municipal governments seeking to maintain neighborhood character and state-level housing policy
  • Parking and infrastructure requirements: Adjustments to parking, utility, or street access standards could either reduce development barriers (benefiting affordability) or create safety/congestion concerns (depending on specific modifications)
  • Property tax and neighborhood impact: Changes may affect how ADUs influence property values, neighborhood density, and local government revenue from development fees

Compiled from official sources — confirm details with the bill’s official record.

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