Unincorporated Contra Costa County regulates short-term rental noise under Ordinance Code Chapter 88-32: no fixed decibel limit or quiet-hours window, but excessive noise inconsistent with residential use is prohibited, gatherings are capped at 20 people, and special events are banned.
Contra Costa County's STR ordinance (Chapter 88-32, adopted by Ord. 2020-12) takes a standards-based approach to noise rather than a numeric one. There's no decibel limit and no county-wide quiet-hours window; instead, the operating standard prohibits excessive noise inconsistent with residential use. Two hard limits do the heavy lifting: gatherings at an STR are capped at 20 persons total, and special events — weddings, conferences, and similar commercial functions — are prohibited outright. Active disturbances fall back on California Penal Code 415, enforced by the Sheriff's Office, while repeat complaints feed into permit action under Chapter 88-32.
Contact your local code enforcement office for specific penalty information.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Contra Costa County, CA
Vehicle noise in unincorporated Contra Costa County is enforced under the California Vehicle Code: mufflers are required (CVC §27150), modified exhausts can'...
Contra Costa County, CA
Unincorporated Contra Costa County enforces quiet hours of 10 p.m.–7 a.m. on weeknights and 10 p.m.–8 a.m. on weekends, using a plainly-audible standard — no...
Contra Costa County, CA
Contra Costa County's Noisy Animal Ordinance (County Code §416-12.202) makes it a violation for an animal to create noise 30 continuous minutes or 60 intermi...
Contra Costa County, CA
Unincorporated Contra Costa County restricts amplified music that is plainly audible inside a neighbor's closed home, prohibits nighttime amplification from ...
Contra Costa County, CA
Construction in unincorporated Contra Costa County is limited to 7 a.m.–7 p.m. weekdays and 8 a.m.–5 p.m. Saturdays, with no construction on Sundays or holid...
Contra Costa County, CA
Gas and electric lawn equipment in unincorporated Contra Costa County may generally be operated between 7:00 AM and 7:00 PM on weekdays and 8:00 AM to 5:00 P...
Side-by-side rule comparisons with other cities in Contra Costa County.
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