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Santa Rosa, CA Accessory Structures: ADU Owner Occupancy (2026)

Light Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

ADU owner-occupancy
Not required, per § 20-42.130(E)(17)
State ban expires
Referenced as before Jan. 1, 2025
JADU owner-occupancy
Required via recorded deed restriction
JADU exception
Govt agency, land trust, nonprofit
JADU noncompliance
Voids approval, legal action possible

Summary

Santa Rosa cannot require an owner to live on-site as a condition of building or keeping an accessory dwelling unit, at least before January 1, 2025. A junior accessory dwelling unit is different: the City's recorded deed-restriction requirement ties its legality to continued owner-occupancy of either the JADU or the primary home.

17. Ownership. The Department shall not impose an owner-occupant requirement on an accessory dwelling unit before January 1, 2025. [...] G. Deed restrictions. Prior to occupancy of a junior accessory dwelling unit that shares sanitation facilities with the single-family dwelling on-site, the property owner shall file with the County Recorder a deed restriction containing a reference to the deed under which the property was acquired by the owner and stating that: [...] 2. The junior accessory dwelling unit shall be considered legal only so long as either the primary residence or junior accessory dwelling unit is occupied by the owner of record of the property. Such owner-occupancy, however, shall not be required if the property owner is a governmental agency, land trust or non-profit housing organization;

Full Breakdown

4. A junior accessory dwelling unit is treated differently under Subsection G: before a JADU can be occupied, the property owner must record a deed restriction with the County Recorder stating that 'the junior accessory dwelling unit shall be considered legal only so long as either the primary residence or junior accessory dwelling unit is occupied by the owner of record of the property,' with an exception only when the owner is a governmental agency, land trust, or non-profit housing organization. 4 requires it to be recorded before a Final Map or Parcel Map can be recorded for a subdivision that includes JADUs. '

Violations & Fines

Renting or occupying a junior accessory dwelling unit without both the primary residence and the JADU satisfying the owner-occupancy deed restriction voids the JADU's approval under Subsection G.3 and exposes the property owner to legal action by the City; there is no equivalent owner-occupancy penalty for a standard ADU, since Subsection E.17 currently bars the City from imposing that condition on ADUs at all.

Frequently Asked Questions

Do I have to live in my house to build an ADU in Santa Rosa?
No. Section 20-42.130(E)(17) bars the Department from imposing an owner-occupant requirement on an accessory dwelling unit before January 1, 2025, so an absentee owner or rental property can add a standard ADU without anyone living on-site.
Is owner-occupancy required for a junior accessory dwelling unit in Santa Rosa?
Yes. Subsection G requires a recorded deed restriction stating the JADU is legal 'only so long as either the primary residence or junior accessory dwelling unit is occupied by the owner of record,' with narrow exceptions for government agencies, land trusts, and non-profit housing organizations.
What happens if the owner-occupancy deed restriction on a Santa Rosa JADU is violated?
Subsection G.3 says noncompliance 'shall void the approval junior accessory dwelling unit and may result in legal action against the property owner,' meaning the unit loses its legal status as a JADU and the owner can face City enforcement.

Sources & Official References

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