ADU Owner Occupancy: Gilbert vs Phoenix
How do adu owner occupancy rules compare between Gilbert, AZ and Phoenix, AZ?
Gilbert and Phoenix have similar restriction levels.
Gilbert, AZ
Maricopa County
Gilbert previously required owner-occupancy as a condition of casita approval, but Arizona HB 2720 (ARS 9-461.18) preempts owner-occupancy requirements in cities over 75,000 population. Gilbert may no longer condition ADU permits on the owner residing on-site. HOA CC&Rs may still impose restrictions, subject to limits under ARS 33-1817.
View full Gilbert rules →Phoenix, AZ
Maricopa County
Phoenix had a long-standing owner-occupancy requirement for casitas under PZC Section 608, but Arizona HB 2928 (2025) preempts this restriction for cities over 75,000 population. Phoenix cannot now require owner-occupancy as a condition of ADU permits or use.
View full Phoenix rules →Key Facts Comparison
| Fact | Gilbert | Phoenix |
|---|---|---|
| Status | Preempted by HB 2720 | Preempted by HB 2928 (2025) |
| Effective Date | January 1, 2025 | - |
| HOA CC&Rs | Limited by ARS §33-1817 | Subject to ARS §33-1817 |
| Rentable | Both units now | Both units now |
| Pre-2025 Rule | - | Was required under §608 |
Highlighted rows indicate differences between cities.
Gilbert FAQ
Does Gilbert require owner-occupancy for a casita?
No, not since January 1, 2025. ARS 9-461.18 preempts owner-occupancy requirements in cities over 75,000 population. Gilbert removed the requirement from its Land Development Code.
Can my Gilbert HOA require me to live on-site to have an ADU?
Possibly through CC&Rs, but HOA authority is limited by ARS 33-1817 which prohibits unreasonable HOA restrictions on lawfully created ADUs. Review your CC&Rs and consult an attorney before relying on the statute.
Phoenix FAQ
Does Phoenix require owner-occupancy for ADUs?
No, not since 2025. Arizona HB 2928 preempts owner-occupancy requirements in cities over 75,000 population. Phoenix removed the requirement that was previously in PZC Section 608.
Can my Phoenix HOA require me to live on-site to have an ADU?
Possibly, but the HOA's authority is limited under ARS 33-1817 which prohibits unreasonable HOA restrictions on lawfully created ADUs. Consult an attorney to evaluate your specific CC&Rs.
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