Monterey County, CA Short-Term Rentals: Noise Rules (2026)

Noise control is a core operating condition of Monterey County's Vacation Rental Operation License. Operators must observe local quiet hours and keep guest behavior from disturbing neighbors, and reporting on the ordinance indicates that outdoor amplified sound is prohibited at short-term rentals in the unincorporated county. The County does not rely solely on the rental ordinance for noise: the general County noise standards (and a separate nighttime-noise ordinance effort) also apply to properties in the unincorporated areas. To make enforcement workable, the ordinance requires every rental to designate a 24-hour local contact or property manager who can be reached at any time and respond to complaints - widely reported as needing to respond and arrive within 30 minutes, with the contact based within a defined radius of the rental. Operators must post the local contact's name and phone number inside the unit and provide house rules covering noise and quiet hours to guests. Repeated noise complaints can become grounds for additional license conditions or, for serious or repeated violations, revocation. Because many rentals sit in quiet residential canyons and coastal neighborhoods such as Carmel Valley and the Carmel Highlands, the County treats noise and neighbor compatibility as central to whether a commercial rental is approved or renewed.