A. Public, semipublic or public service buildings, hospitals, institutions or schools, when permitted in a district, 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, if that part of the building exceeding the height limit is set back from each yard line at least one foot for each foot of additional building height above the height limit otherwise provided in the district in which the building is built
B. Single-family dwellings, two-family dwellings and multiple dwellings may be increased in height by not more than ten feet when the side and rear yards are increased over the yard requirements of the district in which they are located by not less than ten feet, but they shall not exceed three stories in height.
C. Chimneys, cooling towers, elevator bulkheads, fire towers, monuments, stacks, stage towers or scenery lofts, tanks, water towers, ornamental towers and spires, church steeples, radio towers, or necessary mechanical appurtenances, and farm buildings may be erected to a height in accordance with existing or hereafter adopted ordinances of the city. (Prior code § 11-3-7 (a) (1-3))