Accessory Structures in Peoria, AZ (2026)
3 verified accessory structures rules for Peoria, Arizona, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Peoria allows one attached and one detached accessory dwelling unit on a standard single-family lot under Section 21-316, capping each ADU at seventy-five percent of the main house's floor area or 1,000 square feet, whichever is smaller. Lots of an acre or more can add a second detached ADU if it is deed-restricted as affordable housing.
Peoria AZ Accessory Dwelling Unit Rules
Some RestrictionsPeoria City Code § 21-316.A, C.1.a, C.2, D.2.a
A. Purpose and Applicability. ... These regulations are in addition to applicable regulations within the Peoria Engineering Standards Manual, Building and Fire Codes. To the extent any provision in this Section conflicts with A.R.S. 9-461.18, the state law shall control. ... C. Eligibility as a Permitted Use. 1. Permitted Use. ... a. No more than one (1) attached accessory dwelling unit...
Shed & Carport Rules
Peoria sizes and sets back accessory buildings on a sliding scale in Section 21-315.C: sheds under eight feet tall and 200 square feet can sit right on the side or rear property line if unserved by utilities, while anything bigger has to pull back at least three feet, and anything over nine feet or 300 square feet has to meet the full zoning setback for its district.
Peoria AZ Shed and Accessory Building Rules
Some RestrictionsPeoria City Code § 21-315.C.1, C.3-C.5
1. Maximum Height. The height of an accessory building shall not exceed twenty (20) feet in height except in the R1-18 and R1-35 zoning districts OR other zoning districts with minimum lot sizes 18,000 square feet or greater. ... 3. A detached accessory building, less than eight (8) feet in height and with a total floor area or projected roof area which does not exceed two hundred (200) squ...
Tiny Homes
Peoria adopted International Residential Code Appendix Q, which sets simplified construction standards for tiny houses, then narrowed the local definition: a tiny house must measure at least 200 square feet and no more than 400 square feet of floor area, not counting lofts. Anything smaller or larger falls back to the full Residential Code.
Peoria Tiny House Size Rules
Some RestrictionsPeoria City Code § 18-25 (IRC Appendix Q, § AQ102, as amended)
TINY HOUSE. A dwelling that is no more than 400 square feet (37m2 ) and no less than 200 square feet (18.58m2 ) in floor area excluding lofts.
Looking for Maricopa County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Peoria city rules.
Accessory Structures in Maricopa County →