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

Some Restrictions

Verified 1 month ago|Source: County Code Ch. 4 — Noise Abatement →

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Key Facts

STR-Specific Rules: None — general noise ordinance applies
Day Limit: 50 dBA at property line
Night Limit: 45 dBA (10 PM–7 AM)
Code: County Code §36.404
Enforcement: Code Compliance / Sheriff

City-specific rules exist: Carlsbad, Escondido, San Marcos, Vista, El Cajon, Encinitas, Chula Vista, Oceanside, and San Diego have their own noise rules rules that differ from San Diego County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Summary

Short-term rental properties in unincorporated San Diego County must comply with the county's general noise ordinance. No separate STR-specific noise rules exist. Residential noise limits of 50 dBA day / 45 dBA night apply at the property line.

Full Breakdown

The county does not have a dedicated STR noise ordinance for unincorporated areas. All properties, including those used as short-term rentals, are subject to the general noise ordinance (Title 3, Div. 6, Ch. 4). Residential zone limits of 50 dBA daytime and 45 dBA nighttime measured at the property line apply. STR operators should inform guests of noise rules and quiet hours. Noise complaints are investigated by the County Code Compliance Division and the Sheriff's Department.

Violations & Fines

Noise violations are misdemeanors under Section 36.414. Fines up to $1,000 and/or up to six months imprisonment. Repeat violations at an STR property could trigger nuisance abatement proceedings.

Frequently Asked Questions

Are there special noise rules for Airbnbs in unincorporated San Diego County?

No. There are no STR-specific noise regulations. All properties must comply with the county's general noise ordinance, which sets limits of 50 dBA during the day and 45 dBA at night at the property line.

What should I tell my STR guests about noise?

Inform guests that nighttime quiet hours run from 10 PM to 7 AM and that noise measured at the property line must not exceed 45 dBA during those hours. Provide the county's non-emergency number for neighbor concerns.

Can my neighbor's STR be shut down for repeated noise complaints?

Repeated noise violations could lead to nuisance abatement proceedings, but the county does not currently have a mechanism to revoke an STR permit since no specific STR permit is required in unincorporated areas.

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

Key Facts

Summary

Full Breakdown

Violations & Fines

Frequently Asked Questions

Sources & Official References

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