There are many similarities and some differences between an ADU and JADU. Both JADUs and ADUs must be on a permanent foundation and have at least a kitchen facility and living room/bedroom that is separate from the primary dwelling unit. However, requirements for a JADU’s kitchen are more minimal than they are for an ADU. An ADU must have its own bathroom, while a JADU may have its own bathroom or share the bathroom in the primary dwelling unit. ADUs are allowed with multifamily or single-family dwellings, while JADUs are only allowed with single-family dwellings. ADUs may be conversions of existing space, additions or detached, while JADUs are only allowed as conversions of existing space. The maximum size of a JADU is 500 square feet, while the maximum size of an ADU is 850 square feet for studios and 1-bedroom units and 1,000 square feet for multi-bedroom units. JADUs can only be rented if the owner occupies the primary dwelling.