ADU Rules: Menifee vs Murrieta
How do adu rules rules compare between Menifee, CA and Murrieta, CA?
Menifee and Murrieta have similar restriction levels.
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 →Murrieta, CA
Riverside County
Murrieta regulates accessory dwelling units under MMC §16.44.160, implementing California Government Code §65852.2. Detached ADUs up to 1,200 sqft and JADUs up to 500 sqft are permitted by right on single-family lots.
View full Murrieta rules →Key Facts Comparison
| Fact | Menifee | Murrieta |
|---|---|---|
| Code section | Menifee Dev. Code §9.295.020 (Chapter 9.295 Special Housing Types) | - |
| 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 | - |
| Code Section | - | §16.44.160 |
| Detached Max | - | 1,200 sqft / 16 ft |
| JADU | - | 500 sqft by right |
| Parking | - | 1 space (exceptions) |
Highlighted rows indicate differences between cities.
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).
Murrieta FAQ
Can I build an ADU on my property in Murrieta?
Murrieta regulates accessory dwelling units under MMC §16.44.160, implementing California Government Code §65852.2. Detached ADUs up to 1,200 sqft and JADUs up to 500 sqft are permitted by right on single-family lots.
What are the size limits for an accessory dwelling unit in Murrieta?
Code Section: §16.44.160. Detached Max: 1,200 sqft / 16 ft. JADU: 500 sqft by right. Parking: 1 space (exceptions).
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