Maricopa County, AZ Building Safety: Building Permits (2026)
Key Facts
- Permit required
- Zoning Clearance needed before construction starts
- Size exemption
- Single-story accessory 200 sq ft or less
- Patio setback rule
- Low patios can extend into required yard
- Lot-line clearance
- Must stay 2 feet from lot line
Summary
In unincorporated Maricopa County, low patios and terraces can extend into required yards without a Zoning Clearance, but larger or covered structures need a permit under the County Zoning Ordinance.
Terraces, patios, platforms and ornamental features which extend outward from a building and do not extend more than three feet above grade may project into any required yard, provided such features are a maximum of two feet from any lot line or setback line.
Full Breakdown
Article 810.4 of the Maricopa County Zoning Ordinance lets terraces, patios and platforms project into a required front, side or rear yard without violating setback rules, as long as the structure doesn't rise more than three feet above grade and stays at least two feet back from any lot line. That's the exception; the general rule under Chapter 12 is that it's unlawful to construct, alter or improve a structure in unincorporated Maricopa County without first obtaining a Zoning Clearance from the Zoning Inspector. The only size-based carve-out is a non-habitable, single-story accessory structure of 200 square feet or less: a raised deck, a patio cover, or anything larger needs that clearance plus a building permit before work starts.
Violations & Fines
Building without a Zoning Clearance is a zoning violation the county can pursue civilly or criminally; the Hearing Officer imposes non-compliance penalties plus accruing daily penalties until the property is brought into compliance.
Frequently Asked Questions
Do I need a permit to build a patio in unincorporated Maricopa County?
Can a low patio sit closer to my property line than the normal setback?
Sources & Official References
Other rules in Maricopa County
Compare Maricopa County to another location·View the Arizona building safety overview
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