Vacaville, CA Accessory Structures: ADU Rental Restrictions (2026)

The City's ADU ordinance treats short-term rental as incompatible with its purpose of adding long-term housing supply. 040(F)(4) applies the 30-day floor to every accessory dwelling unit and junior accessory dwelling unit in Vacaville, whether the unit was permitted decades ago or built under the current ordinance, closing off Airbnb-style nightly or weekly rentals entirely. The companion no-separate-conveyance rule in subsection (F)(5) keeps an ADU or JADU tied to the primary lot: it cannot be sold or otherwise conveyed apart from the primary dwelling on a single-family lot, or apart from all the dwellings on a multifamily lot, except in the narrow circumstances Government Code Section 66341 allows.

JADUs carry an added layer of restriction: unless the unit has its own separate sanitation facilities or the property belongs to a governmental agency, land trust, or housing organization, a natural person with legal title must actually live on the property, in either the primary home or the JADU, as their legal domicile. Before the City issues a certificate of occupancy for a JADU, the owner must record a deed restriction against the title barring separate sale and confirming the restriction runs with the land, binding every future owner of the property.