(1) The purpose of the accessory dwelling unit (ADU) development standards is to encourage promotion of an environment for family life by providing for the establishment of ADUs in conjunction with one (1) family detached dwellings on individual lots. These development standards are hereby established to promote the use of ADUs; to provide flexibility for the changes in household size associated with life cycle; to offer financial security for home owners; and to offer security against problems associated with frailty in old age.

(2) “Accessory dwelling unit (ADU)” means a residential dwelling unit occupied as a separate dwelling unit on the same lot as a primary dwelling unit, either within the same building as the primary dwelling unit (referred to as an internal ADU), attached to the single-family dwelling, or in a detached building. An accessory building, as defined, is not a mobile home or other portable structure that does not qualify as an ADU.

(3) The use of an accessory dwelling unit in areas zoned primarily for residential use is a permitted use, except as otherwise provided in this Chapter.