If you don’t already know, most cities allow ADU’s to be built in Single Family Home lot. The city of Santa Clara is no exception. Here are the references to the two single family zones that are allowed to have ADU’s – Santa Clara city single family home zone R1-6L zoning regulations and Santa Clara city single family home zone R1-8L regulations. In addition to defining what these zones mean, the city codes go on to list permitted use. In the section of permitted use, it discusses ADU regulation. It discusses requirements for parking, ADU square footage, ADU building height and much more.