"Open space, private" ("Private open space") means a useable open space adjoining and directly accessible by a dwelling unit, reserved for the exclusive use of the occupants of the dwelling unit and their guests. Private open spaces may include patios and landscaped areas but does not include off-street parking, maneuvering, loading, or delivery areas. (Added by Amended Ord. 16-073, Dec. 21, 2016, Eff date Feb. 19, 2017).