Riverside, CA Accessory Structures: ADU Rental Restrictions (2026)
Key Facts
- Minimum rental term
- 30 days for ADU, MADU, and JADU
- Minimum lot size
- None required for an ADU
- Lot coverage
- ADU floor area excluded
- Separate sale of ADU
- Prohibited, narrow nonprofit exception
- JADU deed restriction
- Required, runs with the land
- Enforcing agency
- Riverside Code Enforcement Division
Summary
Riverside's Zoning Code bars short-term rentals of accessory dwelling units. Municipal Code Section 19.442.030(A)(5) requires that any ADU, movable ADU (MADU), or junior ADU (JADU) that is rented be leased for terms longer than 30 days, closing off Airbnb-style stays in secondary units citywide, regardless of zone.
5.ADUs, MADUs and JADUs, when rented, must be used for rentals of terms longer than 30 days.6.No actions to correct zoning nonconformities related to physical improvements are required for ADUs.7.There shall be no minimum lot size requirement to establish an ADU, MADU or JADU.8.The floor area of an ADU, MADU or JADU shall not be counted when calculating lot coverage.9.ADUs may not be sold or otherwise conveyed separate from the primary residence with the exception of a primary dwelling and ADU developed by an IRS recognized 501(c)(3) housing-related nonprofit or a faith-based organization, working with the Housing Authority, whose mission is to provide units to low-income households.10.For JADUs, a deed restriction shall be recorded, to run with the land and to prohibit the sale of the JADU separate from the sale of the primary dwelling as identified in 19.442.030(F).
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 33).
Full Breakdown
030(A) governs every accessory dwelling unit built under Riverside's ADU ordinance: full ADUs, movable ADUs (MADUs), and junior ADUs (JADUs) carved out of an existing house. ' A homeowner who lists a backyard ADU on a nightly-rental platform is violating the zoning code, not just a lease-term guideline. 6). In exchange for those accommodations, the code locks down ownership and rental structure. 9), with a narrow carve-out for units built by an IRS-recognized 501(c)(3) or faith-based nonprofit partnering with the Housing Authority to serve low-income households.
030(A)(10) requires a deed restriction, recorded to run with the land, prohibiting sale of the JADU separate from the primary dwelling. Together, the 30-day minimum and the no-separate-sale rules keep every ADU, MADU, and JADU functioning as long-term housing stock tied to the primary parcel rather than as a standalone rental or investment unit, whether the unit is attached, detached, or a movable unit on wheels.
Violations & Fines
Riverside's Code Enforcement Division, Fire Department, and Police Department share Zoning Code enforcement authority under Section 19.070.010, and officers may issue Notices of Violation and field citations under Section 19.070.020. Section 19.040 makes it 'unlawful and a violation of the Riverside Municipal Code' to use a parcel in a manner that violates the Zoning Code, so an ADU rented short-term can draw a notice of violation, citation, and a required correction of the rental term.
Frequently Asked Questions
Can I list my Riverside ADU on Airbnb?
Can I sell my Riverside ADU separately from my house?
What happens if I rent my ADU short-term anyway?
Sources & Official References
Other rules in Riverside
California rules heatmap·Compare Riverside to another location·View the California accessory structures overview
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ADU Rental Restrictions in Nearby Cities
How other cities in Riverside County handle adu rental restrictions.