Noise from Specific Sources in Simi Valley, CA (2026)
3 verified noise from specific sources rules for Simi Valley, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
HVAC & Mechanical Noise
In Simi Valley's Mixed-Use Overlay District, SVMC Section 9-44.105(I)(2)(l) requires all roof-mounted equipment to be screened and calls for special attention to noise-generating units like refrigeration equipment, air conditioners, and exhaust fans. The rule sits within the chapter's design guidelines, so most of its detail is strongly encouraged rather than mandatory, but the screening requirement itself is written as a shall.
Simi Valley Mixed-Use HVAC Noise Screening
Light RestrictionsSimi Valley Municipal Code § 9-44.105(I)(2)(l)
I.Mixed-Use Overlay District Design Guidelines. The following design guidelines are strongly encouraged for use in the design of mixed-use development applications. Note that all design guidelines appear in italics to distinguish them from standards, which are mandatory requirements....l.All roof-mounted equipment shall be screened. Special consideration should be given to the location and scre...
Bar & Nightclub Noise
Simi Valley treats loud amplified sound and live music near homes as a public nuisance. Venues near residential neighbors must stop amplified music by 11:00 p.m. on weekends and 10:00 p.m. on weeknights, and any live band or orchestral rehearsal within 200 feet of an occupied residence faces the same nighttime cutoff.
Simi Valley Bar and Nightclub Noise Limits
Some RestrictionsSimi Valley Municipal Code § 5-16.02(c) (Noise: Public Nuisances)
The following acts are hereby expressly declared to be nuisances, and any person maintaining or permitting such nuisances, or any of them, to be maintained or to exist in or on his premises, whether as owner, lessee, or otherwise, shall be deemed guilty of a misdemeanor for each day during which such nuisance shall be permitted to be continued: ... (c)Band and orchestral rehearsals. The conduct...
Generator Noise
Simi Valley Municipal Code Section 5-16.02(d) bars running a portable generator, motor or engine outdoors between 11 p.m. and 7 a.m. on weekends and 10 p.m. and 7 a.m. on weeknights unless it sits inside a sound-insulated enclosure quiet enough that it can't be heard 50 feet away, or is more than 10 feet from a residence.
Simi Valley Nighttime Generator and Engine Noise Ban
Some RestrictionsSimi Valley Municipal Code § 5-16.02(d)
(d)Engines, motors, and mechanical devices in and near residential districts. The operation between the hours of 11:00 p.m. and 7:00 a.m. on Friday or Saturday and between the hours of 10:00 p.m. and 7:00 a.m. on Sunday through Thursday of any motor or engine or the use or operation of any automobile, motorcycle, machine, mechanical device, or other contrivance or facility, unless such motor, e...
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County ordinances apply to unincorporated areas and may supplement Simi Valley city rules.
Noise from Specific Sources in Ventura County →