Sec. 94-175. Supplemental height regulations.
It is the intent of this chapter that certain structural appurtenances shall be permitted to exceed the height limitations of this chapter. No portion of any such structural appurtenance shall be used for human occupancy or for commercial enterprise. Any exception to height limitations shall be only to such height as may be necessary to accomplish the purpose the subject appurtenance is intended to serve and so as not to become a hazard to aviation. Structural appurtenances exceeding the maximum height limitations established by the capital region airport authority within ten miles of a public airport shall not be allowed without the approval of the capitol region airport authority, the Michigan Department of Transportation, Bureau of Aeronautics, and/or any other agency having jurisdiction. If the roof area of structural appurtenances permitted to exceed the height limitations exceeds 20 percent of the gross roof area of the structure, said appurtenances shall be considered as integral parts of the whole structure and thereby shall not exceed the height limitations. Structural appurtenances which may be permitted to exceed height limitations include the following:
   (1)   Structural appurtenances which are ornamental in purpose, such as church spires, belfries, cupolas, domes, ornamental towers, flag poles and monuments.
   (2)   Structural appurtenances to mechanical or structural functions, such as chimneys, smoke stacks, solar collectors, water tanks, elevator and stairwell penthouses, ventilators, bulkheads, radio towers, masts, aerials, television antennas, fire hose towers, cooling towers, and heating, ventilation and air conditioning equipment.
(Ord. No. 152, 5-1-2006)