Noise Rules: Brentwood vs El Cerrito
How do noise rules rules compare between Brentwood, CA and El Cerrito, CA?
El Cerrito has fewer restrictions than Brentwood.
Brentwood, CA
Contra Costa County
Brentwood prohibits short-term rentals citywide under Municipal Code Chapter 17.796 (Ord. 1079, adopted Dec 10, 2024), so STR-specific noise rules do not apply. Any rental of 30 days or fewer is unlawful, leaving Brentwood's general noise ordinance to govern occupant conduct at long-term rentals.
View full Brentwood rules →El Cerrito, CA
Contra Costa County
Unincorporated Contra Costa County regulates short-term rentals under Chapter 88-32 of the County Ordinance Code (added by Ordinance 2020-12). The STR operating standards prohibit excessive noise inconsistent with residential use. The ordinance does not set a specific decibel limit or fixed quiet-hour window; instead it pairs that standard with a hard 20-person gathering cap and a ban on weddings, conferences, and other commercial special events.
View full El Cerrito rules →Key Facts Comparison
| Fact | Brentwood | El Cerrito |
|---|---|---|
| STR Status | Banned citywide | - |
| Code Section | BMC Ch. 17.796 | - |
| Ordinance | No. 1079 (Dec 10, 2024) | - |
| Threshold | 30 days or fewer prohibited | - |
| ADUs | Included in ban | - |
| Hosted Stays | No exception | - |
| Authority | - | Ord. Code Ch. 88-32 (Ord. 2020-12) |
| Noise Standard | - | No excessive noise inconsistent with residential use |
| Decibel Limit | - | None set |
| Quiet Hours | - | Not specified |
| Gathering Cap | - | 20 persons total |
| Special Events | - | Prohibited (weddings, conferences) |
| State Fallback | - | Cal. Penal Code 415 |
Highlighted rows indicate differences between cities.
Brentwood FAQ
Are there quiet hours for short-term rentals in Brentwood?
No, because short-term rentals are themselves prohibited under BMC Chapter 17.796. There is no STR program to attach quiet-hours conditions to.
Does the unincorporated Contra Costa County STR noise rule apply inside Brentwood?
No. County Chapter 88-32 (Ord. 2020-12) governs unincorporated areas only; inside Brentwood, the citywide STR ban controls.
What if my neighbor is renting nightly?
Report it to City of Brentwood code enforcement. Stays of 30 days or fewer violate Chapter 17.796 and can trigger citations and abatement.
El Cerrito FAQ
Are there fixed quiet hours for short-term rentals in unincorporated Contra Costa County?
No. Chapter 88-32 does not set a numerical decibel limit or a county-wide quiet-hours window. The operating standard is that excessive noise inconsistent with residential use is prohibited. The county also caps gatherings at 20 persons and bars weddings, conferences, and other commercial events at STRs.
Who responds to a noisy short-term rental complaint in unincorporated Contra Costa County?
The Contra Costa County Sheriff's Office responds to active disturbances and can cite under California Penal Code 415 (disturbing the peace). The local responsible party listed on the STR permit must also respond. Repeat complaints are forwarded to the Department of Conservation and Development for STR permit action under Chapter 88-32.
Do these rules apply inside cities like Walnut Creek or Concord?
No. Chapter 88-32 only applies in the unincorporated county. Cities like Walnut Creek, Concord, Richmond, Antioch, Pittsburg, San Ramon, and Danville set their own STR and noise ordinances, and many of those cities publish numeric quiet hours and decibel limits.
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