Berkeley Noise Ordinance: Limits, Permits, and Reporting

The Berkeley noise ordinance, set out in Chapter 13.40 of the city’s Municipal Code, caps how loud sound can be at your property line based on your zoning district and the time of day, bans gas-powered leaf blowers citywide, and restricts construction to set hours. It applies to homeowners, renters, businesses, and contractors alike, and violations can be charged as either infractions or misdemeanors.¹

Decibel Limits by Zone and Time

Section 13.40.050 sets the maximum exterior sound level measured at the property line of whoever is affected by the noise. The number depends on where that property sits:¹

Low-density residential zones (R-1, R-2, R-1A, R-2A, ESR): 55 dBA from 7:00 a.m. to 10:00 p.m., 45 dBA from 10:00 p.m. to 7:00 a.m.
Higher-density residential (R-3 and above): 60 dBA daytime, 55 dBA nighttime.
Commercial zones: 65 dBA daytime, 60 dBA nighttime.
Industrial zones: 70 dBA around the clock.

A brief spike does not automatically qualify as a violation. The sound has to exceed the listed limit for more than 30 cumulative minutes within any hour. And if the background noise in the area is already louder than the code limit, the standard shifts to that existing ambient level.

Interior Limits in Apartment Buildings

Berkeley regulates sound that passes between units in multi-family housing separately. Under Section 13.40.060, measured inside a neighboring unit with windows in their normal seasonal position, the limits are 45 dBA during the day and 40 dBA at night.

Duration tightens the rule. Sound up to 5 dBA above the base limit is allowed for no more than one cumulative minute per hour, and anything 10 dBA or more above the limit is not permitted for any length of time. Shared-wall stereos, subwoofers, and home theaters are the equipment most likely to run into this.

Construction Hours

Construction, demolition, drilling, repair, and alteration work that crosses a residential or commercial property line above the decibel limits is only allowed from 7:00 a.m. to 7:00 p.m. on weekdays, and 9:00 a.m. to 8:00 p.m. on weekends and holidays.² Emergency utility work is the only exception. A contractor running equipment at 6:30 a.m. on a weekday is in violation once a sound measurement confirms the level, with no warning required first.

Gas-Powered Leaf Blowers Are Banned

Berkeley bans gas-powered leaf blowers everywhere within city limits. The prohibition covers any portable gasoline-engine machine used to blow leaves, dirt, or debris off any surface, and it applies to city employees, private residents, and hired landscapers alike.² Using one is a violation the moment it happens; no warning and no decibel measurement are needed. Stores that sell them within Berkeley have to post notice of the ban.³

Barking Dogs and Other Prohibited Acts

Keeping an animal that produces repeated or prolonged noise is a violation once the sound annoys at least two reasonable people living in separate residences. For dog owners, persistent barking that bothers multiple neighbors qualifies whether or not you are home when it happens. One warning is issued before it becomes citable.²

Section 13.40.070 also singles out several other sources:

Loudspeakers, PA systems, and other amplified sound that exceeds the exterior or interior limits without a permit.
Loud or raucous yelling, shouting, or whistling that creates a noise disturbance, enforceable after a single ignored warning.
Loading or unloading boxes, crates, or building materials between 10:00 p.m. and 7:00 a.m. when the sound crosses a residential property line above the decibel limits.
Equipment producing vibrations annoying to at least two people in separate residences at the property boundary.
Power tools exceeding the decibel limits across a property line, which require both a warning and a sound measurement before a citation.

What’s Exempt

Section 13.40.080 carves out several categories that fall outside the ordinance. Sounds made to alert people to an emergency, and any noise produced during emergency work, are exempt. So are police, fire, and ambulance sirens, along with train horns. Noncommercial, non-amplified public speaking and assembly on public property or in a public right-of-way is not covered at all. And any event operating under a valid sound permit follows the permit’s terms rather than the standard limits.

Getting a Permit or Variance

If you want to run outdoor amplified sound, or indoor amplified sound that would exceed the interior limits, you need an amplified sound permit from the Noise Control Officer through the city’s Environmental Health Division.³ The officer decides whether the proposed sound would be unreasonably disturbing and can attach conditions on volume, hours, and neighbor notification.

Applications go to envhealth@berkeleyca.gov at least 30 days before the event and ask for contact information, the location, a description of the equipment, and the dates and times you need.⁴ That 30-day window is firm. If you’re organizing a block party, outdoor concert, or anything with speakers, build it into your timeline.

A variance is broader. It can excuse you from any provision of the noise ordinance, not just the amplified sound rules. The officer can grant one if the proposed noise won’t endanger public health, safety, or welfare, and if strict compliance would cause an unreasonable hardship without an equal or greater public benefit. After-hours construction on a project with genuine scheduling constraints is the typical use. Variance requests go through the same Environmental Health Division contact.

How to Report a Noise Problem

Where you report depends on what kind of noise you’re dealing with.

For something happening right now — a loud party, amplified music, late-night construction — call the Berkeley Police Department’s non-emergency line. Officers can respond, observe the noise, and start the warning-and-measurement process on the spot.⁵

For ongoing noise from fixed equipment like commercial HVAC units, industrial fans, or compressors, contact the Environmental Health Division at (510) 981-5310 or envhealth@berkeleyca.gov, or file through the city’s online complaint portal.³ Include the address of the source, the times it happens, and how long it lasts. A written log of dates, times, and descriptions makes any investigation that follows much stronger.

What Enforcement Looks Like

Berkeley’s process is more structured than a straight fine schedule.⁶ For most complaints, a Noise Control Officer or responding officer issues a verbal warning first. If the noise continues, or starts up again within eight hours, it becomes citable. Certain categories — amplified sound, construction noise, and power tools among them — also require an actual decibel measurement confirming the sound exceeds the limit before a citation issues.²

Two things skip the warning entirely: using a gas-powered leaf blower, and tampering with noise-monitoring equipment. Both are violations the moment they happen.

A noise violation can be prosecuted as either a misdemeanor or an infraction under Berkeley Municipal Code Chapter 1.20.⁶ The city can also treat any ongoing violation as a public nuisance and pursue abatement, which matters most for businesses or property owners with permanent equipment producing the sound. Abatement means the city can take steps to force the source to stop, on top of any fine.

1
Berkeley Municipal Code. Berkeley Municipal Code 13.40 – Community Noise
2
City of Berkeley. Berkeley Municipal Code 13.40.070 – Prohibited Acts
3
City of Berkeley. Noise Standards
4
City of Berkeley. Application for an Amplified Sound Permit or Variance Only
5
Office of the Chancellor. Happy Neighbors
6
Berkeley Municipal Code. Berkeley Municipal Code 13.40.030 – General Noise Regulations