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

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

Key Facts

Owner-occupancy exempt owners
Government agency, land trust, housing org
Applies to
ADUs and JADUs under § 17.21.070(J)
JADU deed restriction
Required before building permit issued
Restriction removal
Written request showing JADU eliminated
Enforcement remedy
Injunction or abatement of illegal unit

Summary

Hawthorne's accessory dwelling unit ordinance assumes an owner-occupancy condition can apply to ADUs and JADUs, but § 17.21.070(J) waives it outright when the property owner is a government agency, a land trust, or a housing organization rather than an individual homeowner living on site.

§ 17.21.070.J: "Owner Occupancy. Owner-occupancy shall not be required if the owner is a government agency, land trust, or housing organization." § 17.21.080: "Prior to the issuance of a building permit for a JADU, a deed restriction must be recorded against the title of the property in the county recorder's office and a copy filed with the director of planning and community development. The deed restriction shall run with the land and bind all future owners."

Full Breakdown

070 of the Hawthorne Municipal Code, 'Additional ADU and JADU requirements,' lists owner occupancy among the conditions the city can otherwise attach to an accessory dwelling unit or junior accessory dwelling unit. Subsection J states in full: 'Owner Occupancy. ' The exemption is narrow and tied to who holds title, not to how the unit is used: only those three categories of institutional owner qualify, so an individual property owner who wants to rent out both the primary home and the ADU without living in either does not receive the same waiver.

080, which requires a recorded deed restriction before the city will issue a building permit for a junior accessory dwelling unit. That restriction must state that the JADU cannot be sold separately from the primary dwelling and must stay within its approved size and attributes, and it runs with the land, binding every future owner. An owner can only remove the covenant by submitting written evidence to the director of planning and community development that the JADU has actually been eliminated, for example by removing the kitchen facilities, and any building permits needed for that removal work must be approved first.

Violations & Fines

Failing to record the deed restriction required by § 17.21.080 before a JADU building permit is issued, or violating its terms once recorded, is enforceable by the director of planning and community development 'for the benefit of the city' under § 17.21.080(E), which authorizes the city to pursue any legal or equitable remedy, including an injunction against use of the JADU in violation of the recorded restriction or abatement of the illegal unit.

Frequently Asked Questions

Do I have to live in my house if I build an ADU in Hawthorne?
Chapter 17.21 does not spell out a blanket owner-occupancy mandate for all ADUs, but where one applies, § 17.21.070(J) only lifts it for a government agency, land trust, or housing organization that owns the property, not for an individual investor-owner.
What is the deed restriction requirement for a junior ADU?
Before the city issues a building permit for a JADU, § 17.21.080 requires recording a deed restriction against the property barring separate sale of the JADU and locking in its approved size, and that restriction runs with the land against every future owner.
How do I remove a JADU deed restriction later?
You submit a written request to the director of planning and community development with evidence the JADU has been eliminated, such as removing the kitchen, per § 17.21.080(D). Any permits needed for that removal work must be approved before the director will lift the restriction.

Sources & Official References

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