In planned development districts, twenty (20) percent of the net development area shall be established as open space and/or planned development district community recreation facilities. Upon approval of the Hearing Examiner, up to five (5) percent of the unbuildable land may be considered for inclusion in the required open space land upon a showing that such lands can and will be used for a specified recreational purpose. [Ord. 726 § 2 (Exh. B), 2019.]