Communications antennas, if the communications antenna and any equipment accessory to the communications antenna is completely enclosed inside a steeple, dome, bell tower or other existing building feature, shall be permitted by special exception in any zoning district, subject to the applicable standards for communications antennas, communications towers and communications equipment buildings as special exceptions set forth at § 300-134 of this article and the standards for special exception set forth at § 300-115 of this chapter.