Accessory Structures in Commerce City, CO (2026)
2 verified accessory structures rules for Commerce City, Colorado, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Commerce City's Land Development Code defines an accessory dwelling unit as a second, fully independent living space added to or built with a single-family home, but where an ADU is actually allowed is set district by district or in a PUD zone document, not as a blanket citywide right.
Commerce City Accessory Dwelling Unit Zoning Rules
Significant RestrictionsCommerce City Land Development Code §§ 21-5420, 21-5450, 21-11200
(2)Commercial Use Restricted. No accessory structure on a residentially zoned property shall be used for any commercial purpose other than a Short-Term Rental located in a permitted Accessory Dwelling Unit. ... Guesthouse/Carriage House See zone district or PUD Zone Document where allowed. ... Dwelling, Accessory shall mean a second dwelling unit either within or added to an existing single-fam...
Shed & Carport Rules
Storage sheds are allowed by right in every zone district in Commerce City, but the Land Development Code caps them at 200 square feet total, 120 square feet for townhouses, 15 feet tall, and keeps them out of the front yard and any side yard that faces a street.
Commerce City Accessory Storage Shed Size and Setback Rules
Some RestrictionsCommerce City Land Development Code § 21-5450, Table V-4
Storage Sheds 5-foot side setback. 5-foot rear setback. Prohibited in a front yard and side on street yard. Townhouses without legally subdivided outdoor space must meet the above requirements and also be set back at least 2 feet from the side and rear boundaries of their allocated outdoor space. 200 square feet, total of all storage, in residential districts (except townhouses). Townhouses: ma...
Looking for Adams County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Commerce City city rules.
Accessory Structures in Adams County →