Solano County, CA Accessory Structures: ADU Owner Occupancy (2026)

10(B)(2)(q) lists the "Additional Requirements for Junior Accessory Dwelling Units" layered on top of the general ADU/JADU development standards. The first, subsection (q)(1), conditions every JADU permit on owner-occupancy: either the primary dwelling or the junior accessory dwelling unit must be occupied by the property owner, unless the owner is a governmental agency, land trust, or housing organization. Before construction, subsection (q)(2) also requires the owner to record a deed restriction running with the land that bars selling the JADU separately from the single-family residence and locks in the size and design limits the county approved, a restriction a title company or the county recorder can confirm is on file.

Subsection (q)(3) requires the JADU to include an efficiency kitchen with a cooking facility and a food-preparation counter and storage cabinets, and (q)(4) bars renting the JADU for 30 days or less. Notably, Solano's code does not impose an equivalent owner-occupancy condition on a standalone accessory dwelling unit built without a JADU, consistent with the state-law change that stripped local owner-occupancy mandates for ADUs alone; the county kept the occupancy condition only where the code lets a homeowner carve a JADU out of an existing house.