§4–501.

    (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.