Maricopa County, AZ Accessory Structures: Shed & Carport Rules (2026)
Shed permit rules in Maricopa County, AZ, also referred to as storage shed, backyard shed, or accessory building regulations, set size limits, setbacks, and when a building permit is required.
Key Facts
- Side/rear setback
- 3 feet minimum from lot line
- Yard coverage cap
- Max 30% of required yard
- Corner lots
- No carports in street-side yard
- Alley-entered garage
- 10 feet minimum from alley line
- Build timing
- After primary house construction begins
Summary
In unincorporated Maricopa County, a detached carport must sit at least three feet from any side or rear lot line and can cover no more than 30% of the required yard.
1. Detached accessory buildings and structures may be built in the required rear yard and/or the required side yard but shall not occupy more than 30% of any required yard and shall not be nearer than three feet to any side or rear lot line. 2. In the case of corner lots, accessory buildings shall not occupy the street-side yard of the corner lot; and when a garage is entered from an alley, it shall not be located nearer than ten feet to the alley line.
Full Breakdown
Maricopa County's zoning ordinance treats a carport as a detached accessory structure, so it can go in the required rear or side yard but not the street-side yard on a corner lot, and it cannot cover more than 30% of that yard or sit closer than three feet to a side or rear lot line. A detached accessory building cannot be built until construction of the main house has started or the primary use is established. Driveway access from a carport to a county road needs approval from the Maricopa County Department of Transportation and is not allowed along arterial or collector roadways.
Violations & Fines
Building a carport without meeting these setbacks is a zoning violation: a class 2 misdemeanor or a civil penalty for each day it continues, plus possible injunction or abatement action by the county.
Frequently Asked Questions
Can I put a carport in my front yard in unincorporated Maricopa County?
How close to my property line can a detached carport sit?
Does Maricopa County require a permit for a carport?
Sources & Official References
Other rules in Maricopa County
How Maricopa County compares: Shed Permit Requirements by City·Compare Maricopa County to another location·View the Arizona accessory structures overview
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