Laguna Niguel, CA Accessory Structures: ADU Owner Occupancy (2026)

Section 9-1-35.26(f)(7) draws a sharp line between the two accessory unit types on owner-occupancy. Paragraph (f)(7)a states plainly that ADUs are not subject to any owner-occupancy requirement at all, so an owner can rent out both the primary home and a detached or attached ADU to different tenants without living on site. JADUs are treated the opposite way under paragraph (f)(7)b: as required by state law, a natural person holding legal or equitable title to the property must reside on the property, in either the primary dwelling or the JADU itself, as that person's legal domicile and permanent residence.

Two exceptions relieve a JADU from that occupancy rule: if the JADU has its own separate sanitation facilities rather than sharing a bathroom with the primary dwelling, or if the property is entirely owned by a governmental agency, land trust, or housing organization rather than an individual. Because JADUs are also capped at 500 square feet and must sit within an existing or proposed single-family structure under subsection (c)(5), the occupancy rule reinforces that a JADU is meant to house an extension of the same household rather than function as a fully independent rental.

A deed restriction recorded under subsection (f)(8) memorializes the JADU's restrictions, including that it cannot be sold separately from the primary dwelling, but the owner-occupancy requirement itself is enforced through the recorded restriction and the city's ADU permit records rather than the deed language alone.