Because of rising housing costs, even starter homes are becoming more and more inaccessible. Recent legislation aimed at streamlining processes for accessory dwelling units (ADUs) has turned ADUs into the new starter home. ADUs typically need to be permanent structures to qualify. Some cities and counties are trying to change that.
Mobile homes are often put into the category of tiny homes rather than ADUs. There is no restriction on whether or not tiny homes need to be permanent, or whether anything else needs to be on the lot. They just need to be 400 square feet or less. However, the definition of a tiny home varies, so they can be considered ADUs in some jurisdictions. And now, seven cities and three counties have decided that any tiny home that is on wheels is considered a permanent dwelling, and therefore can also qualify as an ADU. These seven cities are Fresno, San Luis Obispo, California City, Los Angeles, Richmond, San Diego, and San Jose. The three counties are Placer County, Humboldt County, and Santa Clara County.