For purposes of this chapter, "modification" means demolition or construction where a demolition or building permit is required. "Modification" also includes substantial changes to landscape, fencing or appearance of a historic site. "Modification" does not include minor changes to landscape, fencing or appearance of a historic site such as painting the historic site substantially the same color, changes to flowerbeds or trimming. (Ord. 2012-15, 9-20-2012)