Walnut Creek, CA Short-Term Rentals: Insurance Requirements (2026)

Because Walnut Creek's zoning code (Municipal Code Title 10, Chapter 2) does not enumerate short-term rental as an allowed use in residential districts, the city has not adopted any STR insurance minimum, surety bond, additional-insured requirement, or proof-of-coverage filing - there is no permit to attach those conditions to. The Planning Division's published guidance treats residential leases shorter than 31 days as an unpermitted hotel-type use. Standard California homeowner (HO-3) and renter (HO-4) policies generally exclude losses arising from business or commercial use of a dwelling, including paid stays under 30 days; carriers may deny claims for guest injuries, theft, or third-party liability tied to an unauthorized rental. Platform-provided coverage such as Airbnb's AirCover or VRBO's Liability Insurance is supplemental, has caps and exclusions, and does not authorize the use under Walnut Creek's zoning code. STR activity inside an accessory dwelling unit additionally requires a Conditional Use Permit through Walnut Creek Planning, which has not historically been granted for under-31-day rentals. For lawful 31-plus-day rentals, no city-specific landlord insurance mandate applies, but lenders, HOAs, and master-policy carriers in condominium projects commonly require landlord (DP-3) coverage and waiver-of-subrogation endorsements. Operators should consult a licensed broker before relying on platform coverage alone.