(a) The height regulations shall not apply to chimneys, cooling towers, elevator bulkheads, fire towers, steeples, stacks, stage towers or scenery lofts, tanks, water towers, ornamental towers and spires, television or radio towers, or necessary mechanical appurtenances.
(b) The limitation on the number of stories shall not apply to buildings used exclusively for storage purposes, provided such buildings do not exceed the height in feet permitted in the district in which they are located.
(c) Public, semipublic or public service buildings, hospitals, institutions or schools where permitted may be erected to a height not exceeding sixty feet, and churches and temples may be erected to a height not exceeding seventy-five feet when the required side and rear yards are increased by one foot for each foot of additional building height above the height regulations for the district in which the building is located.
(1980 Code 153.121)