A. Except as specifically provided in subdivisions 1, 2 and 3 of this section, no material change shall be made in the use of land and no structure or tree shall be erected, altered, planted or otherwise established in any zone created by this chapter unless a permit therefor has been applied for and granted. Each application for a permit shall indicate the purpose for which the permit is desired, with sufficient particularity to permit it to be determined whether the resulting use, structure or tree would conform to the regulations prescribed in the chapter. If such determination is in the affirmative, the permit shall be granted.

1. In the area lying within the limits of the horizontal zone and the conical zone, no permit shall be required for any tree or structure less than seventy-five feet of vertical height above the ground; except, when because of terrain, land contour or topographic features such tree or structure would extend above the height limits prescribed for such zone.

2. In the areas lying within the limits of the noninstrument approach zones but at a horizontal distance of not less than four thousand two hundred feet from each end of the runways, no permit shall be required for any tree or structure less than seventy-five feet of vertical height above the ground, except when such tree or structure would extend above the height limit prescribed for such noninstrument approach zone.

3. In the areas lying within the limits of the transition zones beyond the perimeter of the horizontal zone, no permit shall be required for any tree or structure less than seventy-five feet of vertical height above the ground except when such tree or structure, because of terrain, land contour or topographic features would extend above the height limit prescribed for such transition zones.

B. Nothing contained in any of the foregoing exceptions shall be construed as permitting or intending to permit any construction, alteration or growth of any structure or tree in excess of any of the height limits established by this chapter except as set forth in Section 16.08.040. (Ord. 1022 § 7(a), 1974).