Before any existing use or structure may be replaced, substantially altered or repaired, or rebuilt within any zone established herein, a permit must be secured authorizing this replacement, change, or repair. No permit shall be granted that would allow the establishment or creation of an airport hazard or permit a nonconforming use, structure, or tree to become a greater hazard to air navigation than it was on the effective date of this chapter or any amendments thereto, or than it is when the application for a permit is made. Except as indicated, all applications for this type of permit shall be granted.
(Ord. passed 8-6-75)