ADU Owner Occupancy: Mesa vs Surprise
How do adu owner occupancy rules compare between Mesa, AZ and Surprise, AZ?
Mesa and Surprise have similar restriction levels.
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 →Surprise, AZ
Maricopa County
Under Arizona's ADU statute (ARS § 9-461.18) Surprise cannot require owner occupancy of the principal dwelling or the ADU for long-term rental purposes. The statute also prohibits any familial, marital, or employment relationship requirement between owner and occupant. The only owner-occupancy authority remaining is for ADUs built after September 14, 2024, that are used as short-term rentals — Surprise can require the owner to live on-site in that narrow scenario.
View full Surprise rules →Key Facts Comparison
| Fact | Mesa | Surprise |
|---|---|---|
| Status | Not required (HB 2720) | - |
| Code Section | MZO §11-31-3 | - |
| Both Units Rentable | Yes | - |
| HOA Layer | Heavy — many master-planned communities | - |
| HOA Statute | ARS §33-1817 | - |
| State Preemption | - | ARS § 9-461.18 (no owner occupancy) |
| Long-Term Defined | - | Lease ≥ 90 days or month-to-month |
| STR Exception | - | ADUs built post-9/14/2024 only |
| HOA Authority | - | Not preempted (CC&Rs apply) |
Highlighted rows indicate differences between cities.
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.
Surprise FAQ
Does Surprise require the owner to live on-site to have an ADU?
No, not for long-term rentals. ARS § 9-461.18 preempts municipal owner-occupancy mandates for cities over 75,000 population. The only exception is for ADUs built after September 14, 2024, that are used as short-term rentals.
Can I rent out both the main house and the ADU to different tenants in Surprise?
Yes under state law. ARS § 9-461.18 expressly permits separately leased long-term rental of the single-family dwelling and ADU on the same parcel. Sun City Grand and other HOAs may still restrict this through CC&Rs.
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