Amplified music rules in Castle Rock, CO — also called sound permit, PA system, or live music ordinances — set decibel limits, time-of-day restrictions, and when permits are required.
Amplified sound is governed by noise-control Chapter 9.16. The Town's standard: radios, TVs, musical instruments and similar devices may not be audible 100 feet away, nor audible through a shared party wall.
Amplified music, radios, televisions, stereos and musical instruments are covered by Castle Rock Municipal Code Chapter 9.16 (Noise Control), section 9.16.030 Prohibited Acts. The Town's published operative standard is that these devices may not be audible 100 feet away, nor audible through walls common to two parties. Quiet hours (7 p.m. to 7 a.m.) tighten enforcement at night. Colorado's CRS 25-12-103 sets the underlying dB backstop: residential noise above 55 dB(A) daytime / 50 dB(A) nighttime measured 25 feet from the property line is prima facie a public nuisance, with intermittent or shrill sound triggering at 5 dB(A) lower. Block parties and special events may require Town coordination.
Reported to Police non-emergency 303-663-6100 or Report a Concern (select Excessive noise). Municipal-code violations carry fines on conviction.
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