Appurtenances attached to principal structures. Church spires, belfries, domes or antennas attached to buildings, penthouses (not for human occupancy), chimneys, ventilators, skylights, water tanks, bulkheads and necessary mechanical appurtenances usually carried above roof level shall not be considered when determining the height of the building, and are not subject to height limitations, except that such features shall not exceed 20% of total roof area and shall not exceed a height such as is necessary to accomplish the purpose for which they are intended to serve.

Freestanding noncommercial accessory structures. Water towers and radio and television antennas which are erected as freestanding structures may be erected to a height which can be demonstrated to the Board as necessary to accomplish their intended function. Federally licensed amateur radio facilities shall be subject to Federal Communications Commission (FCC) rules which govern the height of licensed amateur operator radio antennas. The height of the tower or antennas shall conform with U.S. Federal Communications Commission Regulations governing licensed amateur radio operators and, if required, Federal Aviation Administration (FAA) notification and FCC approval. All freestanding noncommercial accessory structures shall not be located within any required front, side or rear yard setback areas and shall be subject to the structural provisions of the New Jersey Uniform Construction Code.