ADU Owner Occupancy: Gilbert vs Mesa
How do adu owner occupancy rules compare between Gilbert, AZ and Mesa, AZ?
Gilbert and Mesa 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 →Mesa, AZ
Maricopa County
Mesa does not require owner occupancy for ADUs under MZO Section 11-31-3, as updated by Ordinance 5883 to comply with HB 2720. Arizona HB 2720 prohibits cities over 75,000 from imposing owner-occupancy requirements. Both the primary residence and ADU may be rented to separate tenants. HOA CC&Rs in Mesa's many master-planned communities may still impose occupancy rules subject to ARS 33-1817 limits.
View full Mesa rules →Key Facts Comparison
| Fact | Gilbert | Mesa |
|---|---|---|
| Status | Preempted by HB 2720 | Not required (HB 2720) |
| Effective Date | January 1, 2025 | - |
| HOA CC&Rs | Limited by ARS §33-1817 | - |
| Rentable | Both units now | - |
| Code Section | - | MZO §11-31-3 |
| Both Units Rentable | - | Yes |
| HOA Layer | - | Heavy — many master-planned communities |
| HOA Statute | - | ARS §33-1817 |
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.
Mesa FAQ
Does Mesa require owner-occupancy for ADUs?
No. Under Arizona HB 2720 and MZO Section 11-31-3 (Ordinance 5883), Mesa cannot require the property owner to live on-site as a condition of ADU permits. Both the main house and the ADU may be rented to separate tenants.
Can my Mesa HOA require me to live on-site to have an ADU?
Possibly, depending on your CC&Rs. Mesa has many master-planned communities with strict HOA rules. ARS 33-1817 limits HOA restrictions that effectively prohibit lawfully created ADUs, but reasonable architectural review may still apply. Review your specific CC&Rs and consult an attorney before relying on or contesting an HOA provision.
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