1. Except for amateur radio towers and antennas as set forth in subsection (A)(2) of this section, the height of any antenna shall not exceed five feet above the maximum permitted building height above the base elevation of the principal building and shall not exceed the horizontal distance between the base of the antenna and the nearest property line.

2. Amateur radio towers and antennas for use by a noncommercial, licensed amateur operator shall be allowed if they:

3. An amateur radio tower or antenna may exceed sixty-five feet above the base elevation of the principal building if approved by the planning director using Review Process II described in EMC Title 15, Local Project Review Procedures. In order to approve an antenna or tower height which exceeds sixty-five feet above the base elevation of the principal building, the planning director shall approve the minimum height necessary to reasonably allow for transmission and reception of radio signals, and the antenna or tower shall:

1. Except as provided in subsection (A) or (B)(2) of this section, no building appurtenance shall exceed a height of five feet above the maximum height allowed in the zone for the principal building, unless the planning director determines that the appurtenance must be above such height for proper operation.

2. The planning director, using the review process described in EMC Title 15, Local Project Review Procedures, may allow an atrium appurtenance which does not increase the floor area of the building but which allows for passive solar energy usage to exceed the maximum building height allowed by the zone in which the subject property is located by not more than twenty percent of the maximum permitted building height. In reviewing such a proposal, the planning director shall not approve the proposed building appurtenance if it would significantly obstruct views from and solar access for surrounding properties.