Height limitations. (See § 400-18K for accessory wind turbine generators, § 400-67 for commercial communication devices, and § 400-91 for wind energy facilities.) Unless otherwise regulated by this chapter, height regulations shall not apply to spires, belfries, cupolas, domes, not used for human occupancy, nor to chimneys, ventilators, monuments, water towers, masts and aerials, television antennas, public utility structures that are not buildings, silos, chimneys, ventilators, and parapet walls extending not more than five feet above the regulated height of the building, skylights, bulkheads, and ornamental or necessary mechanical appurtenances. Any such structure which exceeds a height of 50 feet, 80 feet for agricultural structures, shall be considered a conditional use and increased setbacks may be required.