(A) Permitted exceptions: structural appurtenances. The following kinds of structural appurtenances shall be permitted to exceed the height limitations for uses and the following permitted exceptions may be authorized only when all of the following conditions can be satisfied. No portion of any building or structure permitted as an exception to a height limitation shall be used for human occupancy or for commercial enterprise. Any structural exception to height limitations shall be erected only to the height as may be necessary to accomplish the purpose it is intended to serve, so as not to become a hazard to aviation. If the roof area of the structural elements permitted to exceed the height limitations exceed 20% of the gross roof area, they shall be considered as integral parts of the whole structure, and thereby shall not be eligible for permission to exceed height limitations:
(1) Ornamental in purpose, such as church spires, belfries, cupolas, domes, ornamental towers, flag poles, and monuments.
(2) Appurtenances to mechanical or structural functions, such as chimneys and smoke stacks, water tanks, elevators and stairwells, penthouses, ventilators, bulkheads, radio towers, masts, aerials, television antennas, fire and hose towers, and cooling towers.
(3) Commercial freestanding towers, when not attached to a building or structure, shall be constructed under applicable state and federal regulations of the Planning Commission.
(4) Freestanding towers, such as TV or radio towers intended primarily to serve the occupants of the main structure, shall not exceed one and one-half the structural height limitation for structures in that district.
(5) Wireless telecommunications towers (see § 153.127).
(B) Permitted exceptions: residential districts. There shall be no exceptions permitted for residential structures. However, certain nonresidential structures in residential districts may be permitted to exceed height limitations as described above.
(Ord. 146, passed 3-2-1998; Ord. 230, passed 12-9-2014; Ord., passed 8-10-2021) Penalty, see § 153.999