Accessory Structures in Wyoming (2026)

2 rules on the books across Wyoming, 1 city or county. Select a rule to read the full details.

Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions

ADU Rules

Rules for building accessory dwelling units (granny flats, in-law suites) including size limits, parking requirements, and owner-occupancy rules.

Cheyenne caps accessory dwelling units at one per detached single-unit lot, limited to 40% of the main home's size or…

When a storage shed or carport needs a permit, the square-footage exemption thresholds, and the setback and height limits that apply either way.

Cheyenne's zoning code requires an existing home on the lot before a shed or other accessory building can be permitted…