In the case of a conditional use permit preceding the effective date of the ordinance codified in this title where a substantial alteration, or a change in use, or a change in lot area, or a change of any structure or use is proposed: “Substantial alteration” shall include, for purposes of this chapter, any modification to the structure, use, or premises which will change the use, increase the intensity of operation, increase the floor area or the space devoted to the use, or which is otherwise likely to increase noise, odors, traffic, dust or other sources of potential significant impacts upon abutting properties or their occupants. Alterations, which are not “substantial” as defined herein, will be permitted without applying for a conditional use permit. [Ord. 817 § 8-3L.230, 2006.]