ADU Rules: Jurupa Valley vs Menifee
How do adu rules rules compare between Jurupa Valley, CA and Menifee, CA?
Jurupa Valley has fewer restrictions than Menifee.
Jurupa Valley, CA
Riverside County
Jurupa Valley Municipal Code Section 9.240.290 (adopted via Ordinance No. 2025-22, effective November 2025) implements California Government Code Sections 66313 et seq. Detached new-construction ADUs are capped at 850 sq ft (or 1,000 sq ft if more than one bedroom), 16 ft height (18-20 ft near transit), with 4-foot side and rear setbacks. JADUs are limited to 500 sq ft within an existing single-family dwelling.
View full Jurupa Valley rules →Menifee, CA
Riverside County
Menifee Development Code Chapter 9.295 (Special Housing Types), §9.295.020, regulates accessory dwelling units (ADUs) and junior ADUs (JADUs) consistent with Cal. Gov. Code §65852.2. ADUs are allowed in all single-family and multifamily residential zones. Maximum attached/detached ADU floor area is 1,500 sq ft; JADUs are capped at 500 sq ft and must be carved from the existing single-family residence. Side and rear setbacks are reduced to 4 ft, and detached ADUs are capped at 18 ft tall (20 ft within ½ mile of a major transit stop). One off-street parking space is required unless waived (transit-proximity, historic district, conversion, etc.).
View full Menifee rules →Key Facts Comparison
| Fact | Jurupa Valley | Menifee |
|---|---|---|
| Code section | Jurupa Valley Municipal Code Sec. 9.240.290 (Ord. 2025-22) | Menifee Dev. Code §9.295.020 (Chapter 9.295 Special Housing Types) |
| Max detached ADU size | 850 sq ft (1,000 sq ft if more than 1 bedroom) | - |
| Max detached ADU height | 16 ft (18 ft or 20 ft near transit/multifamily) | - |
| Side/rear setback | 4 ft minimum | - |
| JADU size | 220-500 sq ft within existing single-family dwelling | - |
| State authority | Cal. Gov. Code Sections 66313, 66314, 66317, 66323, 66333 | - |
| Max ADU size | - | 1,500 sq ft (attached or detached) |
| Max JADU size | - | 500 sq ft (interior to primary dwelling) |
| Side/rear setback floor | - | 4 ft for new ADUs |
| Max detached height | - | 18 ft (20 ft within ½ mile of a major transit stop) |
| State framework | - | Cal. Gov. Code §65852.2 |
Highlighted rows indicate differences between cities.
Jurupa Valley FAQ
Can Jurupa Valley deny an ADU permit?
No. Per Sec. 9.240.290(D)(4), the Community Development Director must ministerially approve any application that meets the standards, with no discretionary review or public hearing. State Gov. Code Sec. 66317 caps review at 60 days.
How big can my ADU be?
A detached ADU can be up to 850 sq ft, or 1,000 sq ft if it has more than one bedroom (Sec. 9.240.290(E)(3)(a)). An attached ADU is capped at 50 percent of the primary dwelling's gross floor area.
Do I need to live on the property to build an ADU?
No owner-occupancy is required for an ADU-only project. However, Sec. 9.240.290(G)(3) requires owner-occupancy of either the JADU or primary dwelling when a JADU exists.
Menifee FAQ
How big can my ADU be in Menifee?
Up to 1,500 sq ft for attached or detached ADUs under §9.295.020.E.2.f. JADUs are capped at 500 sq ft and must sit inside the existing single-family residence (§9.295.020.E.4.g).
How close to the property line can I build?
§9.295.020.E.2.g.i.2 sets a 4-ft minimum side and rear setback for new ADUs. The City must allow an 800 sq ft ADU with 4-ft yards even if the underlying zone is more restrictive.
Can I have both an ADU and a JADU?
Yes — §9.295.020.E.3 allows one ADU plus one JADU per single-family lot, mirroring Gov. Code §65852.2(e).
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