Height limitations stipulated elsewhere in this Chapter shall not apply to churches, spires, belfries, cupolas and domes, monuments, historic edifices, chimneys, flagpoles, private radio and TV antennas, fire towers, tanks, water towers and standpipes, all attached to the principal structure, and essential services. All freestanding exceptions shall be considered as accessory structures. Heights of radio and television antennas shall be no higher than 10 feet above the highest point of the structure.

Permitted exceptions listed under paragraph b(1) above, when freestanding and not attached to the principal structure, shall be limited to a height equal to the distance of the freestanding structure to the closest lot line.

Mechanical appurtenances such as condensers, elevator penthouses, exhaust fans, air-conditioning equipment and other similar equipment are exempt from these height restrictions, provided they do not extend more than 10 feet above the maximum height limitations, cover no more than 10% of the roof area and are properly shielded by a parapet wall.