Marin County · checked 2026-09-13
Can you BnB it in Mill Valley?
RestrictedMill Valley's zoning code defines a short-term rental as a rental of less than 30 consecutive days and says it is subject to a business license and short-term rental registration, so short-term rentals are not banned outright. The chapter that sets the registration rules could not be located in the online code, so night limits, caps, and what happens on a sale are unconfirmed.
The rules, with their sources
Permit or licenseA permit or license is required before operating.L15.28.060 · code text · checked 2026-09-13
Transfer when the home sellsCode silent on transfer. The only short-term rental provision located in the code is the definition at Section 20.08.158.6, which says a short-term rental is subject to business license and short-term rental registration but does not say who holds the registration or what happens on a sale. A city business license is issued to a business and is normally not transferable, and the transient occupancy registration certificate under Chapter 5.28 is issued to the operator of the hotel, which implies a buyer would have to register in their own name, but no code sentence confirming this was found.L1Mill Valley Municipal Code Section 20.08.158.6 (zoning definitions); Chapter 5.28 Uniform Transient Occupancy Tax; Chapter 5.08 Business Licenses · code text · checked 2026-09-13
Read the code text →
In the city's own words
20.08.158.6“"Short-term rental" means rental of a dwelling unit or a room or rooms for overnight lodging within a dwelling unit for less than 30 consecutive days, subject to business license and short-term rental registration.” source
5.28.020“any person who exercises occupancy or is entitled to occupancy by reason of concession, permit, right or access, license or other agreement for a period of 30 consecutive calendar days or less” source
5.28.060“register the hotel with the Tax Collector and obtain from him or her a 'transient occupancy registration certificate' to be at all times posted in a conspicuous place on the premises.” source
Citation: Mill Valley Municipal Code Section 20.08.158.6 (zoning definitions); Chapter 5.28 Uniform Transient Occupancy Tax; Chapter 5.08 Business Licenses
Check a specific address
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
Verified from the municipal code (level 1), checked on 2026-09-13 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.