Amplified Music & Events: Simi Valley vs Ventura
How do amplified music & events rules compare between Simi Valley, CA and Ventura, CA?
Simi Valley and Ventura have similar restriction levels.
Simi Valley, CA
Ventura County
Simi Valley prohibits amplified music and sound equipment that creates noise audible beyond property boundaries during nighttime quiet hours. Daytime amplified sound must stay within residential decibel limits measured at the property line.
View full Simi Valley rules →Ventura, CA
Ventura County
Amplified music, loudspeakers, and sound systems in Ventura are regulated under SBMC Chapter 10.650 (Noise Control), with downtown and special-event uses subject to additional permit conditions. State Penal Code Sec. 415(2) provides the statewide loud-noise backstop.
View full Ventura rules →Key Facts Comparison
| Fact | Simi Valley | Ventura |
|---|---|---|
| Daytime Limit | 55 dBA at property line | - |
| Nighttime Limit | 45 dBA at property line | - |
| Quiet Hours Begin | 10 PM | - |
| Special Events | Permit required for outdoor amplified sound | - |
| Governing chapter | - | SBMC Ch. 10.650 (Noise Control) |
| Special events | - | Special Event Permit required for outdoor amplification on public property |
| State backstop | - | Cal. Penal Code Sec. 415(2) - misdemeanor, up to 90 days / $400 |
| Police after hours | - | (805) 650-8010 non-emergency |
| First-offense citation | - | $132 (other municipal code violation) |
Highlighted rows indicate differences between cities.
Simi Valley FAQ
Can I play loud music in my backyard in Simi Valley?
Yes, during daytime hours as long as noise does not exceed 55 dBA at your property line. After 10 PM, the limit drops to 45 dBA and any audible amplified music may constitute a violation.
Do I need a permit for a party with live music?
Outdoor events with amplified music may require a special event permit from the city. Indoor private gatherings generally do not need a permit but must comply with noise limits.
Can police shut down my party for noise?
Yes, officers can order immediate cessation of amplified music that exceeds noise limits or disturbs the peace, particularly during quiet hours after 10 PM.
Ventura FAQ
Can I have a backyard party with a DJ in Ventura?
Yes, but amplified sound must comply with SBMC Chapter 10.650 noise limits. For larger or recurring events, contact the City to determine whether a Special Event Permit or temporary amplification permit is needed.
Who enforces amplified-music complaints at night?
The Ventura Police Department non-emergency line at (805) 650-8010 handles after-hours amplified-noise calls and can act under SBMC 10.650 and California Penal Code Section 415(2).
Is there a decibel limit for music from my home?
Yes - SBMC Chapter 10.650 sets decibel limits that vary by zone (residential, commercial) and by time of day. Check the chapter on the San Buenaventura Municipal Code portal for the current dB(A) tables.
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