Tiny home rules in Corona, CA — covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds — determine where they are legal and how they get permitted.
Tiny homes on permanent foundations in Corona are treated as ADUs under Gov Code 65852.2 and CRC Appendix Q. Tiny homes on wheels (THOWs) are RVs and cannot serve as a primary residence.
California distinguishes three categories of tiny homes. (1) Tiny homes on permanent foundations are treated as ADUs (or Junior ADUs if 500 sq ft or less inside the existing dwelling) under Gov Code §65852.2 and §65852.22. They must meet the California Residential Code, including Appendix Q which provides relaxed standards for units under 400 sq ft (lower ceiling heights down to 6'8", smaller rooms, ladder access to lofts). Corona must ministerially approve qualifying ADU/JADU tiny homes within 60 days; SB 1211 (2025) increases the number allowed on multifamily lots, and AB 2533 (2025) allows legalization of pre-2018 unpermitted units. Minimum ADU size is 150 sq ft (efficiency unit per HCD/HUD). (2) Manufactured/HUD-Code tiny homes installed on a permanent foundation are similarly treated as ADUs. (3) Tiny homes on wheels (THOWs) registered as recreational vehicles or park trailers are governed by the Vehicle Code and HCD's MH/RV regulations; they cannot serve as a primary residence on a residential parcel under Corona zoning except in approved RV parks. A handful of California cities have adopted 'movable tiny house' ordinances permitting THOWs as ADUs (e.g., Fresno, San Jose); Corona has not, so a THOW cannot legally be a primary dwelling on a single-family lot. Caretaker, agricultural, and emergency-shelter exceptions may apply on rural parcels.
Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact Corona code enforcement directly for current fines, enforcement procedures, and hearing options.
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Side-by-side rule comparisons with other cities in Riverside County.
See how other cities in Riverside County handle tiny homes.
See how Corona's tiny homes rules stack up against other locations.
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