Commerce City, CO Short-Term Rentals: Noise Rules (2026)

Sec. 9-3908(c) of the Commerce City Revised Municipal Code requires that each short-term rental unit have the city's noise ordinance, Sec. 6-2011 (unreasonable noise), posted in a visible location inside the unit, so renters and guests see the actual noise standard they must follow. That underlying standard, Sec. 6-2011(a), defines unreasonable noise as any sound of a level and duration that is or tends to be injurious to human health or welfare, or that unreasonably interferes with the enjoyment of life or property; city agents may make a prima facie call on unreasonableness based on the time of day, the size of any gathering creating the noise, the neighborhood where it occurs, and whether amplification equipment is involved.

Sec. 6-2011(b) makes it unlawful to make, continue or knowingly permit unreasonable noise on any premises or in any vehicle under a person's control, and it creates a rebuttable evidentiary shortcut for enforcement: if the owner or occupant was present when the unreasonable noise occurred, that presence is prima facie evidence the person was in control of the premises and knowingly permitted the violation. Beyond the posting requirement, Sec. 9-3908(g)(2) requires every short-term rental to maintain a good neighbor guide informing occupants of quiet hours and other quality-of-life considerations for the surrounding neighborhood, and Sec.

9-3908(d) requires the mandatory unit sign to list restrictions on noise and amplified sound alongside parking rules and contact information for the owner or responsible agent.