Dublin, CA Accessory Structures: ADU Owner Occupancy (2026)

80's regulations for a standard accessory dwelling unit list occupancy under subsection M with a single, unqualified sentence: owner-occupancy shall not be required. That means a Dublin homeowner can build a detached or attached ADU and rent out both the principal residence and the ADU to separate tenants without living on site at all. 050, are treated differently. 1 requires the lot owner to occupy either the principal residence or the JADU itself, with a narrow carve-out if the owner is a governmental agency, land trust, or housing organization.

3 requires a deed restriction, filed with the building permit application and running with the land, that prohibits selling the JADU separately from the house and states the restriction is enforceable against future purchasers, plus a size and attribute restriction tracking Government Code Sections 66333 through 66339. The distinction matters most at resale: a house with a JADU carries that recorded deed restriction indefinitely, while an ADU imposes no comparable ownership or residency condition on the property. Both provisions were part of the chapter's substantial rewrite under Ordinance 9-25 in November 2025, which also updated the chapter's Government Code cross-references.