2.132.050“The tax shall be imposed at the rate of ten percent the cost of the rental of the room or rooms or living space subject to the tax.” source
17.08.030, 17.08.040“The R-1 permitted uses are one one-family dwelling, field crop, orchard, garden, and in Castro Valley only small and large family day cares; no short-term rental, vacation rental, transient lodging, boarding house, rooming house or renting of rooms is listed.” source
Title 3 chapter list“Title 3 Business Licenses and Regulations contains no short-term rental, vacation rental, transient occupancy, home sharing or rental registry chapter; the closest is Chapter 3.20 Hotel and Motel Registration.” source
Citation: Alameda County General Ordinance Code, Title 17 Zoning (no short-term rental chapter), Title 3 Business Licenses and Regulations (no short-term rental chapter), Chapter 2.132 Hotel and Lodging Tax (Ord. 2003-9)
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.
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.