If you are looking for Accessory Dwelling Unit builders in Fullerton, CA, contact Orange County Construction. The process of building an ADU is similar to constructing an extension or freestanding structure, but what sets them apart from other ADU developers is their awareness of new legislation, local regulations, and permit procedures, which differ from those that normally apply to home building. For more information, please visit orangecountyconstruction.com/adu-oc/.