[Ord. #585, § 402E; Ord. #641]
The height provisions of this chapter shall not apply to the erection of building appurtenances such as church spires, belfries, clock towers or flagpoles designed exclusively for ornamental purposes. The height provisions of this chapter shall moreover not apply to chimneys, flues, bulkheads, elevator enclosures, water tanks, air-conditioning units, antennas or similar accessory structures occupying an aggregate of 10% or less of the area of the roof of the principal building on which they are located and provided such structures do not exceed the height limit by more than 10 feet and are visually screened through appropriate architectural treatment. In the case of antennas or towers that are accessory structures, such antenna or towers, when located in a nonresidential zone, may not exceed the height limitations established for a principal structure in that zone by more than 10 feet, and when located in a residential zone, may not exceed 45 feet; provided, however, that no part of the antennas or tower or extension thereof shall be located closer to any property line than a distance equal to twice the extended height of the antenna or tower. Nothing in this chapter shall prevent the erection of a parapet wall or cornice extending not more than three feet above the height limit nor the construction of farm buildings of variable heights.