The following shall be excluded from building and structure area in computing lot coverage in all residential zones: uncovered and unenclosed off-street parking spaces; walks; patios; trellises; eaves; in-ground pools; those portions of an uncovered and unenclosed outdoor deck or balcony either functioning as a garage apron, or located four feet or less above the average ground level beneath the deck; and one-half of the deck area of an uncovered and unenclosed outdoor deck at least fifteen feet above the average unenclosed ground level beneath it. (Ord. 2005-1 § 4, 2005; Ord. 89-1 § 1, 1989.)