If you’ve got that space, you’re off to a good start. But there are a number of other property size requirements, as well. United Dwelling focuses on detached ADUs, but it’s worth noting an ADU that’s attached to an existing home can only be 50% of the size of the main unit. For example, if a home is 2000 square feet, the attached ADU can max out at 1000 square feet. On the other hand, a detached ADU can be up to 1200 square feet, no matter the size of the main building. If you are looking for adu service in Santa Clarita, CA, Visit Working Class American Construction.