Accessory Dwelling Unit (ADU). One or more rooms with private bath and kitchen facilities comprising an independent, self-contained dwelling unit within or attached to a single-family dwelling or in a detached building on the same lot as the primary dwelling unit. An ADU is distinguishable from a duplex in that, unlike a duplex, it is clearly subordinate to the primary dwelling unit, both in use and appearance. (Ord. M-4377 § 2(g), 2022; Ord. M-4209 § 2, 2017; Ord. M-3931 § 25, 2009; Ord. M-3643, 2004)