(a) In this subtitle the following words have the meanings indicated.
(b) (1) “Accessory dwelling unit” means a secondary dwelling unit that is:
(i) on the same lot, parcel, or tract as a primary single–family detached dwelling unit; and
(ii) not greater than 75% of the size of and subordinate in use to the primary single–family detached dwelling unit.
(2) “Accessory dwelling unit” includes a structure that is:
(i) separate from the primary single–family detached dwelling unit; or
(ii) attached as an addition to the primary single–family detached dwelling unit.
(c) (1) “Dwelling unit” means a single unit providing complete living facilities for at least one individual, including, at a minimum, provisions for sanitation, cooking, eating, and sleeping.
(2) “Dwelling unit” does not include a unit in a multifamily residential building.
(d) “Utility” means water or sewer disposal services provided by:
(1) a private company regulated under Division I of the Public Utilities Article;
(2) the Washington Suburban Sanitary Commission regulated under Division II of the Public Utilities Article;
(3) a sanitary commission regulated under Title 9, Subtitle 6 of the Environment Article; or
(4) a municipal authority regulated under Title 9, Subtitle 7 of the Environment Article.