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Accessory Structures in Murrieta, CA (2026)

5 verified accessory structures rules for Murrieta, California, sourced directly from the municipal code and official government pages.

Verified from official government sources

ADU Rules

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.

Murrieta ADU Rules

Some Restrictions

Shed Rules

Murrieta allows sheds and other one-story detached accessory buildings in residential rear yards. Sheds 120 square feet or smaller that are not served by electrical, plumbing, or mechanical systems generally do not require a building permit under California Building Code section 105.2, but still must meet zoning setbacks and HOA rules.

Shed Rules in Murrieta

Few Restrictions

Garage Conversions

Garage conversions to ADUs are permitted in Murrieta under California Government Code §65852.2. No replacement parking is required for garage conversions. Building permits are required for habitable space conversion.

Murrieta Garage Conversion Rules

Some Restrictions

Carport Rules

Carports in Murrieta require a building permit and must comply with setbacks for accessory structures. Open carports can often be located closer to property lines than enclosed garages, but must respect front-yard prohibitions, height limits, and fire separation rules in the California Residential Code.

Carport Rules in Murrieta

Some Restrictions

Tiny Homes

Tiny homes in Murrieta are regulated based on whether they are built on a foundation (as an ADU or movable tiny house on foundation) or on wheels (as a recreational vehicle or Park Model RV). Foundation-based tiny homes fall under ADU laws (Gov Code section 65852.2, as amended by SB 1211). Tiny homes on wheels are generally not permitted as permanent residences in residential zones.

Tiny Home Rules in Murrieta

Heavy Restrictions

Looking for Riverside County county-wide rules?

County ordinances apply to unincorporated areas and may supplement Murrieta city rules.

Accessory Structures in Riverside County