Accessory Structures in Mohave County, AZ (2026)

2 rules for unincorporated Mohave County, Arizona.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Mohave County. If you live within an incorporated city, that city's own rules apply: see the city list below.

ADU Rules

Under Mohave County Ordinance 2025-06, any property that allows a single-family home may add one attached and one detached accessory residence, with an extra detached unit on lots over one acre. This is county zoning, not the state HB 2720 municipal law.

Mohave County Accessory Residence Rules

Few Restrictions

Mohave County Ordinance 2025-06 (accessory residences)

one (1) attached and one (1) detached accessory residence for any property that allows a single-family residence

Full ordinance details →Official source ↗

Shed & Carport Rules

Mohave County exempts a one-story detached shed of 300 square feet or less with no utilities from a building permit, but it must still meet the five-foot accessory-structure setbacks and stay out of easements.

Mohave County Shed & Outbuilding Rules

Few Restrictions

Mohave County Building Ordinance 2021-03 — Work Exempt from Permit (sheds)

One-story detached accessory structures used as tool and storage sheds, playhouses and similar uses, provided the floor area is not greater than 300 square feet and has no utilities to the structure.

Full ordinance details →Official source ↗

All Mohave County ordinances

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