(A) Height. The following architectural projections, structures and essential services may exceed the district height limitations set forth elsewhere in this Code up to a maximum height of 60 feet, provided all required yards are increased by not less than one foot for each foot that the structure exceeds the district’s maximum building height:
(1) Architectural projections, such as spires, belfries, parapet walls, cupolas, domes, flues and chimneys;
(2) Special Structures, such as elevator penthouses, gas tanks, grain elevators, scenery lofts, radio and television receiving antennas, manufacturing equipment and necessary mechanical appurtenances, cooling towers, fire towers, sub-stations, smoke stacks, flag poles and outdoor theater screens, provided said screens contain no advertising matter; and
(3) Structures exceeding 60 feet in height may also be allowed by the Board of Adjustment if proper measures have been provided to protect the public health, safety and welfare.
(B) Yards. The yard requirements set forth elsewhere in this Code may be modified as follows.
(1) Uncovered stairs, landings and fire escapes may project a maximum of six into any yard, provided that such projection shall be set back a minimum of three feet from all lot lines.
(2) Architectural projections, such as chimneys, flues, sills, eaves, belt courses and ornaments, may project a maximum of four into any minimum setback except buffer yards and landscaped setbacks.
(C) Reduced street setbacks. If lots platted between the dates of September 10, 1974 and July 1, 2000 were platted with smaller front or street side setbacks than the minimums required by this Code, the platted setback shall prevail and be the minimum requirement for said lots.
(D) Utility services.
(1) The location of additional communication antenna on a legally existing communication tower, or other antenna on towers previously approved for the purpose of the antenna, shall not require approval by the Board of Adjustment.
(2) Communication antennas may be mounted directly on an existing structure on a nonresidential property, and shall not require approval by the Board of Adjustment if the installation conforms to the height and setback requirements for buildings permitted in the zoning district.
(3) Communication towers that are designed as an architecturally compatible element may be added to an existing nonresidential use, such as a school or church, without approval by the Board of Adjustment, subject to the same height and setback requirements as for other structures permitted in this District, and to the performance standards in § 160.47 except those pertaining to landscaping, fencing or screening.
(4) The maximum height of the tower shall be three times the setback from the nearest property line, unless otherwise limited by the maximum height requirement of the specific zoning district. No use shall be permitted inside of the perimeter of the guys, if the tower is guyed, or in the fall zone as certified by a licenses engineer, that is not directly accessory to the tower. The fall zone of the tower shall be completely within the boundaries of the subject property.
(5) Water towers, treatment plants, electrical substations, regulator stations and similar utility installations, except communication towers and facilities for maintenance or general operations, may exceed the maximum allowable height of a zoning district, provided that evidence shall be provided to show that the additional height is essential to service the public; that no reasonable alternative exists; and that all negative impacts, including esthetics, have been mitigated to the extent possible. Such mitigation may include, but are not limited to, requirements for increased setbacks; screening with landscaping, berms, fences or walls; and architectural treatments.
(6) Overhead utility transmission lines are exempt from setback and height regulations.