An Accessory Dwelling Unit (ADU) can take a variety of forms, but packs a powerful housing punch. Like a home, but less than 800 square feet, each has a style or purpose only the owner can define. In the purest manifestation, however, an ADU is a small, efficient, self-contained dwelling on the same grounds as a conventional single family residence. Architecturally, an ADU can be a detached backyard cottage, a finished basement, a garage apartment, or a separate-entry home addition. It’s influenced by property specifications, producing results where form meets function with added character.