Quiet hours in Aurora, CO — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Aurora's Unified Development Ordinance Section 4.4.8 sets residential noise limits of 55 dBA during the day (7 AM-9 PM) and 45 dBA at night (9 PM-7 AM), measured at the property line. City Code Section 94-107 separately prohibits unnecessary noise and disturbing the peace.
Aurora regulates noise through two mechanisms. UDO Section 146-4.4.8 establishes quantitative limits: noise at the property line of each protected residential lot must not exceed 55 dBA from 7 AM to 9 PM and 45 dBA from 9 PM to 7 AM. Section 94-107 of the City Code addresses unnecessary noise and disturbing the peace as a general offense. Using or operating any loudspeaker, public address system, or similar device between 10 PM and 7 AM that creates a noise disturbance at a residential property boundary is prohibited unless authorized by a temporary permit. Enforcement is handled by Aurora Police Department at 303-739-7000.
Violation of Section 94-107 (disturbing the peace) is a municipal offense. State law CRS 18-9-106 makes disturbing the peace a Class 1 petty offense with fines up to $500.
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Side-by-side rule comparisons with other cities in Arapahoe County.
See how other cities in Arapahoe County handle quiet hours.
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