Tiny Homes: Mesa vs Peoria
How do tiny homes rules compare between Mesa, AZ and Peoria, AZ?
Mesa and Peoria have similar restriction levels.
Mesa, AZ
Maricopa County
Mesa permits accessory dwelling units up to 1,200 sq ft or 75% of the primary dwelling in single-residence districts under Ordinance 5883. Tiny homes on wheels are treated as RVs and cannot serve as permanent residences.
View full Mesa rules →Peoria, AZ
Maricopa County
Tiny homes on permanent foundations may qualify as ADUs in Peoria under the recently updated Section 21-316 (Accessory Dwelling Units). Peoria updated its ADU regulations in late 2024 to comply with Arizona HB 2720. Tiny homes on wheels are classified as RVs and cannot be permanent residences. Foundation-based tiny homes must meet all building code requirements.
View full Peoria rules →Key Facts Comparison
| Fact | Mesa | Peoria |
|---|---|---|
| Max ADU Size | 1,200 sq ft or 75% of home | - |
| Zoning | By right in all SF districts | - |
| THOWs | Classified as RVs | - |
| Code Reference | Ordinance 5883 | - |
| On Foundation | - | Permitted as ADU under Section 21-316 |
| On Wheels | - | Classified as RV, no permanent residence |
| State Law | - | AZ HB 2720 expanded ADU rights |
| Permit | - | Building permit required |
| Updated | - | Late 2024 ADU regulation update |
| Building Code | - | International Residential Code |
Highlighted rows indicate differences between cities.
Mesa FAQ
Can I build a tiny home in Mesa?
Tiny homes on permanent foundations can qualify as ADUs in Mesa, up to 1,200 sq ft or 75% of the primary home. Tiny homes on wheels are classified as RVs.
How big can an ADU be in Mesa?
Mesa allows ADUs up to 75% of the primary dwelling's floor area or 1,200 square feet, whichever is less. This was increased from the previous 30% limit under Ordinance 5883.
Peoria FAQ
Can I put a tiny house on my Peoria property?
Foundation-based tiny homes may qualify as ADUs under Section 21-316. Tiny homes on wheels are RVs and cannot be permanent residences.
Did Peoria recently change its ADU rules?
Yes. Peoria updated Section 21-316 in late 2024 to comply with Arizona HB 2720, expanding ADU rights on single-family lots.
Can my HOA prevent an ADU?
Arizona law limits HOA restrictions on ADUs. However, some HOA design review requirements may still apply. Check your CC&Rs.
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