Height Limitations For Structures. Radio, television, public utility and communication towers, wireless support structures and disguised support structures permitted in this district or authorized by conditional use permit may be erected, or substantially modified, to any height as authorized by Chapter 430 of the City Code not in conflict with the provisions of Section 415.240, Air Navigation Space Regulations. Unless otherwise restricted by application of regulations in Section 415.240, Air Navigation Space Regulations, of this Chapter, the total height of any other structure, not including roof top mechanical equipment attached to such structures, shall not exceed two hundred (200) feet above the average finished ground elevation at the perimeter of such structure.