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Contra Costa County, CA Short-Term Rentals: Insurance Requirements (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified June 2026

Key Facts

County Liability Minimum
None set
Authority
Ord. Code Ch. 88-32 (Ord. 2020-12)
Application Requires
Owner info, site/floor plan, responsible party
Application Fee
$380
Platform Coverage
Airbnb AirCover $1M, Vrbo $1M (not county-mandated)
City Rules May Differ
Walnut Creek, Concord, Richmond, San Ramon

Summary

Unincorporated Contra Costa County does not set a minimum liability-insurance requirement for short-term rental hosts. The STR rules in Ordinance Code Chapter 88-32 focus on the application, owner information, site and floor plans, a responsible party, and a $380 fee, leaving insurance to hosts and platforms.

City-specific rules exist: San Ramon has its own insurance requirements rules that differ from Contra Costa County's county-level regulations. If you live in San Ramon, check the city-specific page instead.

88-32.406 Application. (a) An owner, lessee, or holder of a similar interest in a residential dwelling unit may apply for a short-term rental permit by filing an application with the department. The application must be on a form approved by the director and contain all of the following information. ... (9) The applicant's agreement to indemnify, defend, and hold harmless the County, its boards, commissions, officers, employees, and agents from any and all claims, costs, losses, actions, fees, liabilities, expenses, and damages arising from or related to the applicant's application for a short-term rental permit, the County's approval of the permit, and the operation of the short-term rental. (Ord. 2020-12 § 2).

Source: Municode LibraryView official code

Full Breakdown

Insurance is the requirement Contra Costa County didn't impose. Chapter 88-32 of the county ordinance code (adopted by Ordinance 2020-12) governs short-term rentals in the unincorporated area, and its application asks for owner information, a site and floor plan, a designated responsible party and a $380 fee, but no proof of liability coverage. That leaves protection to the platforms and to hosts themselves: Airbnb's AirCover and Vrbo's liability program each provide $1 million in host liability coverage, though neither is county-mandated. Hosts should still review their homeowners policy, which often excludes paid short-term rental activity, and any HOA requirements. Cities like Walnut Creek, Concord, Richmond and San Ramon set their own rules.

Frequently Asked Questions

Does unincorporated Contra Costa County require STR hosts to carry liability insurance?
No. Chapter 88-32 and the county's published STR application materials do not set a minimum host liability insurance amount as a condition of issuance. Some California cities require $500,000 or $1,000,000 minimums, but the Contra Costa County unincorporated rule does not.
Does Airbnb or Vrbo coverage substitute for a county requirement?
There is no county requirement to substitute for. Airbnb AirCover for Hosts and Vrbo Liability Insurance both provide $1 million in host liability coverage at the platform level, authorized in California by Insurance Code Section 1758.9. These are platform-level, not county-mandated, programs.
Could my homeowners policy or HOA still require STR coverage?
Yes. Standard homeowners and dwelling fire policies often exclude or limit coverage for paid short-term rental activity, and HOA CC&Rs or lender covenants may require a named-insured endorsement or commercial general liability coverage independent of the county ordinance. Check your policy and CC&Rs before listing.

Sources & Official References

Other rules in Contra Costa County

All Contra Costa County rules

California rules heatmap·Compare Contra Costa County to another location·View the California short-term rentals overview

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