Contra Costa County · checked 2026-09-14
Can you BnB it in San Ramon?
AllowedSan Ramon allows short term rentals in any residential district with an annual city registration and a business license. Un-hosted rentals are capped at 12 weeks per year, occupancy is limited to two adults per bedroom, properties with an ADU or JADU cannot register, and the registration does not transfer to a buyer.
The rules, with their sources
Permit or licenseA permit or license is required before operating.L2Zoning Ordinance section D4-27, Bed and Breakfast Inns and Short-Term Rentals, effective 2020-02-28; adopting ordinance number not found · code text · checked 2026-09-14
Hosted onlyThe code does not limit rentals to hosted stays.L2Zoning Ordinance section D4-27, Bed and Breakfast Inns and Short-Term Rentals, effective 2020-02-28; adopting ordinance number not found · code text · checked 2026-09-14
Night capUnhosted rentals are capped at 84 nights per year.L2Zoning Ordinance section D4-27, Bed and Breakfast Inns and Short-Term Rentals, effective 2020-02-28; adopting ordinance number not found · code text · checked 2026-09-14
Caps and limitsUn-hosted rentals are limited to 12 weeks (84 nights) per year per the official registration form; hosted rentals have no stated duration limit. Properties containing an ADU or JADU are ineligible to register.L2Zoning Ordinance section D4-27, Bed and Breakfast Inns and Short-Term Rentals, effective 2020-02-28; adopting ordinance number not found · code text · checked 2026-09-14
Transfer when the home sellsThe official registration form states the registration is non-transferable, so a buyer must apply for a new annual registration; the form lists no family, trust, or entity exceptions. The D4-27 code text itself could not be read to confirm exceptions.L2official Short-Term Rental Registration Form · code text · checked 2026-09-14
Read the code text →
In the city's own words
Zoning Ordinance D4-27 (as quoted on official city STR page)“A Short-Term Rental (STR) is defined by the Zoning Ordinance as a dwelling that is leased or rented in full or in part for the purpose of overnight lodging for less than thirty (30) consecutive day terms.” source
official Short-Term Rental Registration Form“Registration is non-transferable” source
Citation: Zoning Ordinance section D4-27, Bed and Breakfast Inns and Short-Term Rentals, effective 2020-02-28; adopting ordinance number not found
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The checker resolves any California address to its jurisdiction and returns these rules with their verification level. Where a county or city publishes a licensed-rental registry or parcel map (Riverside County, San Diego, Palm Springs, and a growing list), it also runs parcel spacing, permit cap, and registry checks.
How this page was verified
From the jurisdiction's official page (level 2), checked on 2026-09-14 by the CanIBnB research desk. Research is AI assisted and human reviewed; the method, the level system, and the re-check schedule are on the How we verify page. If anything here is wrong, report it and it goes in the public corrections log.