Noise Rules: Concord vs San Ramon
How do noise rules rules compare between Concord, CA and San Ramon, CA?
San Ramon has fewer restrictions than Concord.
Concord, CA
Contra Costa County
Short-term rentals are entirely prohibited in Concord, so STR-specific noise rules do not exist. Any unpermitted rental under 30 days is itself a zoning violation. Concord's general noise ordinance (Municipal Code Ch. 9.05) and 10 PM-7 AM quiet hours still apply to all residential properties.
View full Concord rules →San Ramon, CA
Contra Costa County
San Ramon allows STRs in any residential district subject to Zoning Ordinance D4-27, which makes the operator jointly responsible for compliance with all City noise regulations under Municipal Code Chapter V (B6-81 through B6-122). General nighttime quiet hours run 10 PM to 8 AM, and audio or yelling that is plainly audible at 50 feet from the building between those hours is prima facie evidence of a violation. Un-hosted STRs are capped at 12 weeks per year, and STRs may not be rented for parties or other special events.
View full San Ramon rules →Key Facts Comparison
| Fact | Concord | San Ramon |
|---|---|---|
| STR Status | Prohibited citywide | Allowed with annual registration |
| Min Rental Term | 30+ days | - |
| Quiet Hours | 10 PM - 7 AM (all residences) | 10 PM - 8 AM |
| Nighttime Limit | 45 dBA residential | - |
| Report STR Use | zoning@cityofconcord.org | - |
| Noise Complaints | Concord PD (925) 671-3333 | - |
| STR Code Section | - | Zoning Ordinance D4-27 |
| Noise Code | - | Municipal Code Ch. V (B6-81 to B6-122) |
| Audible Standard | - | Plainly audible at 50 ft (prima facie) |
| Local Contact Response | - | 30 minutes, 24/7 (D4-27.C.2.d) |
| Un-hosted Cap | - | 12 weeks per year |
| Special Events | - | Prohibited (no parties/weddings) |
Highlighted rows indicate differences between cities.
Concord FAQ
Are there special noise rules for Airbnbs in Concord?
No. Short-term rentals are prohibited in Concord, so there are no STR-specific noise rules. The citywide 10 PM-7 AM quiet hours and 45 dBA nighttime limit under Municipal Code Chapter 9.05 apply to every dwelling.
How do I report a noisy short-term rental in Concord?
Report noise to Concord PD non-emergency at (925) 671-3333 or via the Concord Connect app. Report the underlying short-term rental use to the Planning Division at zoning@cityofconcord.org.
Can my STR permit be revoked if guests are noisy?
Concord does not issue STR permits at all. Any rental under 30 days is prohibited regardless of guest behavior.
San Ramon FAQ
Does San Ramon set special noise limits for short-term rentals?
No. San Ramon does not impose STR-specific decibel limits. D4-27.D.6 makes operators jointly responsible for compliance with the citywide noise rules in Municipal Code Chapter V, including the 10 PM to 8 AM quiet hours.
How are noise complaints handled at a San Ramon STR?
Under D4-27.C.2.d, the registered local contact must be available 24 hours a day and able to respond physically to the rental within 30 minutes. Audio plainly audible at 50 feet between 10 PM and 8 AM is prima facie evidence of a B6-91 violation.
Can my San Ramon STR registration be revoked for noise problems?
Yes. Under D4-27.G, the Zoning Administrator may schedule a public hearing to revoke a registration for violations or public nuisance, and a revoked registration may not be re-issued for 12 months.
Are short-term rentals allowed for parties or weddings in San Ramon?
No. D4-27.D.2 expressly prohibits renting an STR for the purpose of holding special events such as weddings, conferences, or parties.
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