Garage Conversions: Jurupa Valley vs Riverside
How do garage conversions rules compare between Jurupa Valley, CA and Riverside, CA?
Jurupa Valley and Riverside have similar restriction levels.
Jurupa Valley, CA
Riverside County
California state law (Government Code §§66313-66342, replacing former §65852.2 effective 2025) strongly preempts local restrictions on converting an existing garage to an Accessory Dwelling Unit. Jurupa Valley implemented its updated ADU ordinance through Ordinance No. 2025-22 (adopted October 2025), codified at Title 9 §9.240.490.
View full Jurupa Valley rules →Riverside, CA
Riverside County
Converting an existing garage into an ADU or Junior ADU is permitted ministerially in Riverside under RMC Chapter 19.442 and California Government Code §65852.2. No replacement covered parking is required when the garage becomes an ADU.
View full Riverside rules →Key Facts Comparison
| Fact | Jurupa Valley | Riverside |
|---|---|---|
| Local ADU code | Title 9 §9.240.490 (Ord. 2025-22, Oct 2025) | - |
| State preemption | Gov. Code §§66313 et seq. (replaces §65852.2) | - |
| Replacement parking | PROHIBITED when garage is converted to ADU | None required |
| Ministerial approval | Required for garage-to-ADU conversions (60-day timeline) | - |
| Code chapter | - | RMC Chapter 19.442 |
| State law | - | Cal. Gov. Code §65852.2 |
| JADU size cap | - | 500 sq ft |
| Min rental term | - | 31+ days (no short-term) |
Highlighted rows indicate differences between cities.
Jurupa Valley FAQ
Can Jurupa Valley deny my garage-to-ADU conversion?
Generally no — state law (Gov. Code §66323) requires ministerial approval of ADUs created within existing accessory structures or single-family homes, including detached garages, provided basic health and safety standards are met.
Do I have to replace the garage parking when I convert it?
No. Gov. Code §66323 explicitly prohibits the city from requiring replacement parking when a garage, carport, or covered parking is demolished or converted to create an ADU.
Does the conversion still need building permits?
Yes. While the ADU approval itself is ministerial, the conversion must obtain building, electrical, plumbing, and mechanical permits and comply with the California Building Standards Code (Title 24).
Riverside FAQ
Do I have to replace the parking I lose when converting my garage?
No. California Government Code §65852.2(a)(1)(D)(xi) prohibits Riverside from requiring replacement parking when an existing garage is converted into an ADU.
Can I rent out my converted garage on Airbnb?
No. ADUs in Riverside must be rented for terms longer than 30 days; short-term rental of an ADU is not allowed.
Does my converted garage have to look like the main house?
Riverside requires the exterior finish, roof pitch, and trim to match the primary dwelling for compatibility under RMC Chapter 19.442 design standards.
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