Accessory Structures in Cheyenne, WY (2026)
2 verified accessory structures rules for Cheyenne, Wyoming, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Cheyenne caps accessory dwelling units at one per detached single-unit lot, limited to 40% of the main home's size or 1,200 square feet.
Cheyenne Accessory Dwelling Unit Rules
Some RestrictionsCheyenne Unified Development Code 5.7.3
Only one accessory dwelling unit is permitted per detached one-unit dwelling lot in any zoning district where accessory dwellings are allowed as permitted, administrative or conditional uses. Accessory dwelling units are prohibited on lots with multi-dwelling buildings, attached dwellings or semi-attached dwellings. c. After approval by the Director of an accessory dwelling unit pursuant to su...
Shed & Carport Rules
Cheyenne's zoning code requires an existing home on the lot before a shed or other accessory building can be permitted, caps lots at two accessory buildings, and limits their combined footprint to 15% of the property.
Cheyenne Shed and Accessory Building Standards
Some RestrictionsCheyenne UDC 5.8.8
a. There shall be a principal building constructed on the site prior to an accessory building being permitted. b. For double frontage, triple frontage and corner lots, the setback for a wall with vehicular access parallel to the adjacent right-of-way shall be 25', otherwise the setback for double frontage, triple frontage and corner lots shall be half of the r...