Maricopa County, AZ Home Business: Signage Rules (2026)
Key Facts
- Max sign size
- 4 square feet
- Governing section
- MCZO § 603.9(8)
- Applies to
- Unincorporated Maricopa County only
- Sign standard cross-ref
- MCZO Article 1102.1
- Violation penalty
- Class 2 misdemeanor
Summary
In unincorporated Maricopa County, a home occupation's sign is capped at four square feet and must otherwise meet the county's general sign standards under MCZO Article 1102.1.
There shall be no change to the residential appearance of the premises, except that a separate business entrance shall be permitted. A maximum four (4) square foot sign shall be permitted, and the sign shall otherwise meet the requirements of Article 1102.1 of this Ordinance.
Full Breakdown
Maricopa County's zoning code treats a home occupation as an accessory use that must leave the dwelling looking residential: no exterior change is permitted except a separate business entrance and one identification sign. That sign cannot exceed four square feet, well under the general 24-square-foot rural/residential cap, and it must still sit on the property itself, clear of any required yard or public right-of-way, per MCZO Article 1102.1. The limit applies only in unincorporated Maricopa County; Phoenix, Mesa, and other incorporated cities set their own home-business sign rules. A zoning violation is a class 2 misdemeanor, with each day of a continuing violation a separate offense under Article 1203.1.
Violations & Fines
Exceeding the 4-square-foot cap or ignoring Article 1102.1's placement rules is a zoning violation: a class 2 misdemeanor, with each day it continues counted as a separate offense under MCZO § 1203.1.
Frequently Asked Questions
Can a home business in unincorporated Maricopa County put up a bigger sign?
Does this sign limit apply inside Phoenix or Mesa?
Sources & Official References
Other rules in Maricopa County
Compare Maricopa County to another location·View the Arizona home business overview
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