Walnut Creek, CA Short-Term Rentals: Occupancy Limits (2026)

While Walnut Creek does not publish an STR-specific occupancy formula in a dedicated ordinance, occupancy is constrained by overlapping rules: the California Building Code's Group R residential occupancy standards, the city's nuisance and noise ordinances, and any conditions attached to the Business License. The commonly accepted industry and code-adjacent standard applied in Bay Area jurisdictions is 2 guests per bedroom plus 2 additional guests for the dwelling, with infants under 2 typically not counted. For a 3-bedroom home this yields a maximum of 8 overnight guests. Daytime guest counts (for gatherings, parties, or events) are also restricted — large parties and any event requiring catering, DJs, or amplified sound are frequently prohibited outright by Walnut Creek's nuisance and noise regulations (Municipal Code Chapter 4-3) which cap amplified sound and enforce a 10 PM–7 AM quiet period. Hosts should publish house rules matching these limits in their Airbnb/VRBO listing, and provide the local contact number so neighbors can report overcrowding. Exceeding occupancy is one of the fastest paths to Business License suspension, especially if paired with noise or parking violations. Fire code egress standards also independently cap the number of sleepers per bedroom based on room size and number of exits.