(1) Exceptions to Height Regulations. Chimneys, water tanks, penthouses, towers, scenery lofts, elevators, bulkheads, stacks, ornamental casting towers, monuments, steeples, cupolas, domes, false mansards, and similar structures and necessary mechanical appurtenances may be erected to any height not exceeding the cross-sectional area of 20 percent of the ground floor.

(2) The above exceptions shall not apply to structures within the designated airport zones. [Ord. 4110 § 27, 2013; Ord. 3354 § 2, 1999; Code 1970 § 25.74.040.]