An ADU may be smaller, but it’s just as challenging to build as a full-sized dwelling.

Steve Snyder and his wife Jackie Ellenz first learned about Accessory Dwelling Units (ADUs) through their designer, Libby Holah. She and her husband Greg had previously designed a bathroom for Snyder and Ellenz, and they were a natural first choice when it came to remodeling part of their home in Portland, Ore.