Tiny Homes Zoning — State ProfileReviewed 2026-08-23
Can you put a tiny home in California?
Current tiny-home-on-wheels and ADU rules for California, sourced and dated — plus verified local builders.
DEPENDS ON LOCATION
California — Strong ADU law, but wheeled units still classed as RVs (verified 2026-08)
Tiny home on wheelsTiny homes on wheels are generally classified as recreational vehicles under state law and can't be a permanent primary residence outside an approved RV park or a specific county pilot program.
ADU / accessory unitCalifornia's ADU law (Government Code Chapter 13, §66310–66342, continuously amended since 2016) requires cities and counties to approve qualifying ADUs up to 1,200 sq ft of interior livable space, largely overriding local single-family zoning. AB 976 (effective Jan. 2024) permanently removed the owner-occupancy requirement for standard ADUs. SB 543 (effective 2026) added a 15-day permit-completeness review and fee exemptions for units under 500 sq ft. This correction: an earlier draft cited 'SB 9 / SB 1069' as the core ADU law — SB 9 is actually a separate lot-split/duplex law, and SB 1069 was one of several original 2016 ADU bills, not the current framework.
Minimum square footageNo statewide minimum; local codes vary
Foundation requirementFoundation-built units follow standard residential code; wheeled units follow RV/vehicle code
Local notesThe practical path in California is almost always a foundation-built ADU rather than a tiny home on wheels as a primary residence. A handful of counties run their own tiny-home pilot ordinances — check county planning directly. Some HOA/condo restrictions remain contested in court as of mid-2026 (a San Diego trial-court ruling is not binding statewide) — get current advice for condo-zoned property specifically.
!Zoning is set by your specific city or county, not the state as a whole. Use this as a starting point, then confirm with the local building or planning department before you buy land or start a build. Not legal advice.
Last reviewed 2026-08-23