Noise Ordinances in Brentwood, CA (2026)
5 verified noise ordinances for Brentwood, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Construction Hours
Brentwood limits noisy construction and grading to weekdays 7 a.m. to 3:30 p.m. (or 5:30 p.m. with city engineer approval), with no weekend work except an approved Saturday window of 8 a.m. to 5 p.m. Sundays and city holidays are off-limits.
Construction Noise Hours in Brentwood, CA
Some RestrictionsBrentwood Municipal Code § 9.32.050(A)
All operation of power construction equipment or any other construction device that creates noise in excess of the noise level limits of this article, and all performance of any outside construction work, including, but not limited to, grading and trenching, that creates noise in excess of the noise level limits of this article shall be limited to the following hours: Monday through Friday from...
Barking Dogs
Brentwood enforces barking-dog and noisy-animal complaints through the Contra Costa County Animal Services Department, adopted by reference in Municipal Code Section 6.12.010. A signed, sworn complaint or a department employee's observation can trigger an administrative penalty, and repeat nuisance violations escalate from a $100 to a $500 fine.
Brentwood Barking Dog Noise Complaint Rules
Some RestrictionsBrentwood Municipal Code §§ 6.12.020(D)-(E), 17.670.007(B)
The department may issue an administrative penalty under Article 416-4.8 to any responsible person for a violation of Section 416-12.202, Animal Noise, based on either or both of the following: 1. An observation of the violation by a department employee. 2. A complaint, signed under penalty of perjury, lodged by a person who has been disturbed by the barking dog or noisy animal. E. Violation of...
Leaf Blower Rules
Powered lawn and gardening equipment in Brentwood may be operated from 7:00 AM to 7:00 PM on weekdays and Saturdays, and from 8:00 AM to 6:00 PM on Sundays and holidays. Electric and battery-powered equipment must still comply with these hours under BMC Chapter 9.32.
Noise: Lawn Equipment Hours
Some RestrictionsCal. Health & Safety Code § 41015 (AB 1346, 2021)
small off-road engines, as defined by the state board. The bill would require the state board to identify and, to the extent feasible, make available funding for commercial rebates or similar incentive funding as part of any updates to existing applicable funding program guidelines to local air pollution control districts and air quality management districts to implement to support the transiti...
Amplified Music & Outdoor Sound
Brentwood requires a temporary use permit from community development for amplified sound activities that would exceed normal noise limits, reviewed by police, capped at four occasions or six weeks, and appealable if denied.
Amplified Sound Permit Rules in Brentwood, CA
Some RestrictionsBrentwood Municipal Code § 9.32.080
The city of Brentwood community development department may grant a temporary use permit, which allows noncompliance with the limitations prescribed in this chapter for the purpose of sound activities of short duration. ... ... 8. Submit proposed activity plan to the police department for review and approval; ... ... H. A permit may be issued for more than one occasion of activity. However, the ...
Decibel Limits
Brentwood sets exterior noise limits of 60 dBA (residential and commercial) or 65 dBA (industrial) by day, dropping to 45 dBA residential/commercial and 60 dBA industrial at night. Interior multifamily limits run 40-45 dBA overnight and morning.
Decibel Noise Limits by Zone in Brentwood, CA
Some RestrictionsBrentwood Municipal Code § 9.32.030
Zone I Residential 7:00 a.m.-10:00 p.m. 60 10:00 p.m.-7:00 a.m. 45 Zone II Commercial 7:00 a.m. -10:00 p.m. 60 10:00 p.m. -7:00 a.m. 45 Zone III Industrial 7:00 a.m. -10:00 p.m. 65 10:00 p.m. -7:00 a.m. 60 ... a. ... The exterior noise levels for that land use, as specified in subsection 9.32.030(B)(1), for a total of more than thirty minutes in any consecutive sixty minutes; ... e. ... The ext...
Looking for Contra Costa County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Brentwood city rules.
Noise Ordinances in Contra Costa County →