Orange County, CA Accessory Structures: ADU Rental Restrictions (2026)
Key Facts
- Minimum rental term
- 30 days (long-term only)
- Short-term rentals
- Prohibited for ADUs/JADUs
- Governing section
- § 7-9-90(c)(5), Zoning Code
- Applies to
- Attached, detached ADUs and JADUs
- Jurisdiction
- Unincorporated Orange County only
Summary
Accessory dwelling units and junior ADUs in unincorporated Orange County may only be rented long-term, for stays of 30 days or more; renting either as a short-term rental under 30 days is prohibited under the county zoning code.
The accessory or junior accessory dwelling unit is not intended for sale separate from the primary dwelling but may be rented as a long-term rental (more than thirty (30) days). The accessory or junior accessory dwelling unit(s) shall not be used as a short-term rental (less than thirty (30) days).
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 157).
Full Breakdown
Orange County's zoning code allows attached and detached accessory dwelling units (ADUs) and junior ADUs in unincorporated single-family and multifamily districts, but restricts how they can be rented. Under Section 7-9-90(c)(5), an ADU or JADU is not intended for sale separate from the primary dwelling and may be rented only as a long-term rental, meaning a stay of more than 30 days. Renting an ADU or JADU as a short-term rental, defined countywide as a stay of less than 30 days, is expressly forbidden, so ADUs and JADUs are shut out of the county's short-term rental permit program entirely regardless of the underlying zoning district.
Violations & Fines
Renting an ADU or JADU for a stay under 30 days violates Section 7-9-90(c)(5) and cannot be legalized through the county's short-term rental permit process; OC Development Services can pursue code enforcement against the property owner.
Frequently Asked Questions
Can I rent my Orange County ADU on Airbnb?
Does this rule apply in cities like Anaheim or Irvine?
Sources & Official References
Other rules in Orange County
California rules heatmap·Compare Orange County to another location·View the California accessory structures overview
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