Amplified music rules in Douglas County, CO — also called sound permit, PA system, or live music ordinances — set decibel limits, time-of-day restrictions, and when permits are required.
In unincorporated Douglas County, electronic amplifier noise is capped at 55 dB(A) in business and industrial districts, while homes fall under the 55 dB(A) day / 50 dB(A) night limits. Castle Rock bars music audible 100 feet away or through a shared wall.
Section 1703A.04 provides that 'noise by means of any electronic amplifier shall not exceed 55 dB(A)' in the B, C, LI and GI districts. In residential zones, amplified music is judged against the general table (55 dB(A) daytime, 50 dB(A) nighttime), measured 25 feet from the lot line. Within the Town of Castle Rock, radios, televisions, musical instruments and similar devices may not be audible 100 feet away nor through a wall shared with another party. Parties and events on public property may qualify for a separate exclusion.
County zoning enforcement for excess amplifier noise; Castle Rock treats audible amplified sound as a municipal noise offense (police non-emergency 303-663-6100).
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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