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San Mateo County, CA Short-Term Rentals: Noise Rules (2026)

Some Restrictions

Verified 1 month ago|Source: San Mateo County STR Permit →

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Key Facts

Noise Code: SMC Ch. 4.88
Local Contact: Within 20 miles, available at all times
Nighttime Hours: 10 PM – 7 AM
Report: Sheriff (650) 363-4911

City-specific rules exist: San Mateo, Daly City, Redwood City, and South San Francisco have their own noise rules rules that differ from San Mateo County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Summary

STR guests in unincorporated San Mateo County must comply with Chapter 4.88 noise standards. Hosts are responsible for guest conduct. The local contact must be within 20 miles and reachable at all times during the rental.

Full Breakdown

Under the San Mateo County STR Ordinance, operators are responsible for ensuring guests comply with all county ordinances including the noise standards of Chapter 4.88. The designated local contact person must remain within 20 miles of the property and be available to respond at all times during rentals. Noise disturbances can be reported to the Sheriff's Office at (650) 363-4911. Repeated violations may result in permit suspension or revocation.

Violations & Fines

Noise violation at STR: $250 to $1,000. Multiple complaints: permit suspension/revocation. Host responsible for guest behavior.

Frequently Asked Questions

What noise rules apply to short-term rentals in San Mateo County?

What are the quiet hours for Airbnb guests in San Mateo County?

Noise Code: SMC Ch. 4.88. Local Contact: Within 20 miles, available at all times. Nighttime Hours: 10 PM – 7 AM. Report: Sheriff (650) 363-4911.

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San Mateo County, CA Short-Term Rentals: Noise Rules (2026)

Key Facts

Summary

Full Breakdown

Violations & Fines

Frequently Asked Questions

Sources & Official References

Related San Mateo County Ordinances

Noise Ordinances: Amplified Music & Events

Parking Rules: Abandoned Vehicles

Parking Rules: Overnight Parking

Fence Regulations: Pool Barriers

Fence Regulations: Retaining Walls

Animal Ordinances: Chickens & Livestock

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