Tiny home rules in Walnut Creek, 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.
California HCD guidance and Health and Safety Code 18007 classify many tiny homes on wheels as manufactured housing or ADUs, granting statewide siting protections.
Health and Safety Code sections 18007-18014 govern manufactured homes and define when a structure qualifies as a mobilehome, manufactured home, or recreational vehicle. Tiny homes built to ANSI 119.5 or HUD code may be sited as ADUs under Government Code 65852.2 if they meet ADU dimensional rules and are placed on a permanent foundation. RV-classified tiny homes are restricted to mobilehome and RV parks. State law also covers movable tiny houses through SB-477 and HCD information bulletins, providing a uniform regulatory framework.
Improper siting outside ADU or RV-park rules may trigger zoning enforcement; HCD enforces manufactured housing standards statewide.
Walnut Creek, CA
Walnut Creek restricts RV, boat, and trailer parking in residential zones. These vehicles cannot be stored in front yards or on public streets for extended p...
Walnut Creek, CA
Walnut Creek enforces the California Vehicle Code 22651(k) statewide 72-hour street parking limit. Downtown has metered parking and timed zones. Residential ...
Walnut Creek, CA
Walnut Creek restricts overnight parking of commercial vehicles in residential zones. Vehicles with commercial plates exceeding specified weight or length li...
Walnut Creek, CA
Properties in Walnut Creek's Very High Fire Hazard Severity Zone and State Responsibility Area — including the city's eastern hills near Mount Diablo and alo...
Walnut Creek, CA
Walnut Creek is served by East Bay Municipal Utility District (EBMUD) and Contra Costa Water District (CCWD), both of which enforce permanent statewide water...
Walnut Creek, CA
Noxious weeds on the Contra Costa County Agricultural Commissioner's list — including yellow starthistle, artichoke thistle, and various broom species — must...
Side-by-side rule comparisons with other cities in Contra Costa County.
See how other cities in Contra Costa County handle tiny homes.
See how Walnut Creek's tiny homes rules stack up against other locations.
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