Noise Ordinances in Sonoma, CA (2026)
10 verified noise ordinances for Sonoma, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Quiet Hours
Sonoma Municipal Code Chapter 9.56 defines daytime as 7:00 a.m.-9:00 p.m. Sun-Thu and 7:00 a.m.-10:00 p.m. Fri-Sat; nighttime is quiet hours with stricter dBA limits enforced at the receiving property line.
Sonoma Quiet Hours and General Noise Limits
Some RestrictionsConstruction Hours
Sonoma Municipal Code 9.56.050 allows residential power equipment (including construction tools) Monday-Friday 8:00 a.m.-6:00 p.m., Saturday 9:00 a.m.-6:00 p.m., and Sunday/holidays 10:00 a.m.-6:00 p.m.
Sonoma Construction and Power Equipment Hours
Some RestrictionsBarking Dogs
Continuous and unprovoked barking is regulated under SMC 9.56.030 (loud/unusual noise prohibited) and enforced by Sonoma Police, who refer animal-related complaints to Sonoma County Animal Services under County Code Chapter 5.
Sonoma Barking Dog Enforcement
Some RestrictionsLeaf Blower Rules
Gas-powered leaf blowers have been banned within Sonoma city limits since December 22, 2016. Electric and battery leaf blowers are permitted only Monday-Saturday (excluding holidays) from 9:00 a.m. to 4:00 p.m.
Sonoma Gas Leaf Blower Ban and Electric Blower Hours
Heavy RestrictionsAmplified Music & Events
Amplified sound directed toward a public right-of-way from a business is prohibited under SMC Chapter 9.56; outdoor amplified music at events requires a zoning/special-event permit, and ongoing amplified sound must stay within general dBA limits in SMC 9.56.040.
Sonoma Amplified Sound and Special Events
Some RestrictionsAircraft Noise
The City of Sonoma does not regulate aircraft noise. Aircraft operations and noise emissions are exclusively governed by federal law under FAA jurisdiction, and the nearest airport (Sonoma Valley/Schellville) is regulated by Sonoma County's airport land use compatibility framework, not Sonoma Municipal Code Chapter 9.56.
Aircraft Noise (Federally Preempted)
Few RestrictionsIndustrial Noise
Sonoma Municipal Code § 9.56.040 caps noise on commercial property at 65 dBA intermittent and 55 dBA constant, measured at the property line, unless a use permit authorizes a higher level. Industrial uses are typically conditioned through the use permit process under Title 19 (Zoning).
Industrial / Commercial Property Noise Limits
Some RestrictionsDecibel Limits
Sonoma Municipal Code § 9.56.040 sets dBA limits measured at the receiving property line, distinguishing constant from intermittent noise. Commercial property limits are 65 dBA intermittent / 55 dBA constant; residential limits are lower and Chapter 9.56 directs that where two limits overlap, the more restrictive one applies.
General Decibel Limits (SMC 9.56.040)
Some RestrictionsOutdoor Music
Sonoma Municipal Code Chapter 9.56 prohibits aiming amplified, transmitted, or recorded sound at the public right-of-way from a business and subjects all outdoor music to the dBA limits of SMC § 9.56.040. Outdoor music events above those limits require a permit under SMC § 9.56.060.
Outdoor Amplified Music & Sound
Some RestrictionsVehicle Noise
On-road motor vehicle noise is regulated by the California Vehicle Code, not Sonoma Municipal Code. CVC § 27150 requires an adequate muffler at all times and § 27151 prohibits exhaust modifications that increase noise above the statutory limits (95 dBA for passenger vehicles under 6,000 lbs GVWR). Sonoma police enforce these state standards.
Vehicle Noise (State Preempted)
Some RestrictionsLooking for Sonoma County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Sonoma city rules.
Noise Ordinances in Sonoma County →