A full site plan shall be required for all sites, showing the tower, antenna, antenna support structure, building, fencing, buffering, access, fall zone, and all other items required in this chapter. The site plan shall clearly indicate the location, the specific placement of the facility on the site, the type and height of the proposed WCF, on-site land uses and zoning, adjacent land uses and zoning, adjacent roadways, proposed means of access, setbacks from property lines, elevation drawings of the proposed facility, the location of existing structures, trees, and other significant site features, the type and location of plant materials used to screen the facility, fencing, proposed color(s), and any other proposed structures. The site plan shall not be required if the antenna is to be mounted on an existing structure;