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

Section 15.02.080.D.10 requires a licensee to post a copy of the short-term rental license "in a prominent location within the rental," and that posted copy must specify the license term, the approved occupancy, "relevant provisions of section 10.20.090 regarding unreasonable noise," the location of the fire extinguisher, and the property manager's address, phone number and email address. Rather than writing a stand-alone decibel or curfew rule for short-term rentals, Longmont folds guests and hosts into the city's general unreasonable-noise ordinance at section 10.20.090 and requires the license itself to advertise that fact on site, so a guest cannot claim ignorance of the noise rules.

Section D.13 goes further and makes noise control an express condition of approval for every short-term rental license, alongside occupancy limits and parking, "to prevent adverse impacts to surrounding properties and to protect public health, safety and general welfare." A noise complaint that results in a notice of violation, warning, citation or fine against the property counts toward the three-incident "pattern of nuisance" threshold in section D.16, which authorizes the director to revoke the license outright, separate from any citation issued directly under the noise ordinance itself. Investigation, notice and appeal procedures for a short-term rental revocation run through development code chapter 15.09.