Section 9.09   Fences and Free-Standing Walls
   (1)   The height of all fences and free-standing walls shall be measured from outside finished grade to the top of the wall and:
      (A)   Fill shall not be added for the purpose of elevating the fence or free-standing wall.
      (B)   Open railings on top of free-standing walls are included in the height measurements of all freestanding walls.
   (2)   A masonry or solid wall, living fence, hedge, column or driveway gate, or other structure with a maximum height of four and one half (4.5) feet shall not extend more than halfway into any one required side and/or required rear yard setback. If a masonry or solid wall acts as a swimming pool barrier and encroaches within a required side yard and/or required rear yard setback, such enclosure may be built up to five (5) feet in height measured from outside finished grade. Masonry or solid walls, living fences, hedges, columns or driveway gates, or other structures shall not be placed within the required front yard building setback. (Ord. #2007-05)
 
Figure 9.2: Example of a masonry wall or solid wall encroachment into a required yard (building setback).
      (A)   Natural features such as steep terrain, boulder outcroppings, or washes shall be preserved in their natural condition. (Ord. #2007-05)
      (B)   All areas enclosed by the subject wall or other structures in the nature of a wall shall be included within the disturbed area calculations. (Ord. #2007-05)
      (C)   Walls establishing the perimeter of a corral used in the keeping of horses or other equines shall be placed a minimum of one hundred (100) feet from any lot line. (Ord. #2007-05)
      (D)   Any masonry wall, solid wall, or other structure in the nature of a wall encroaching within any required side or required rear yard shall undulate on a horizontal plane (curvilinear). (Ord. #2007-05)
      (E)   Any masonry wall, solid wall, or other structure in the nature of a wall encroaching within any required side or required rear yard shall provide breaks (openings designed for the 100-year storm event) for washes and significant wildlife corridors. (Ord. #2007-05)
   (3)   A maximum four and one-half (4.5) foot high open fence may extend no more than halfway into any required side yard and/or required rear yard but shall not be placed within the required front yard. If the open fence acts as a swimming pool barrier and encroaches within a required side and/or required rear yard, such enclosure may be built up to five (5) feet in height measured from outside finished grade. (Ord. #2007-05)
      (A)   Chain link, barb wire, razor wire, and wood plank fencing are prohibited.
      (B)   Breaks within the fence shall be provided for washes and significant wildlife corridors.
      (C)   Fences establishing the perimeter of a corral used in the keeping of horses or other equines shall be placed a minimum of one hundred (100) feet from any lot line.
   (4)   Fences or walls located in the buildable area shall not exceed a height of six (6) feet from finished grade.
      (A)   Chain link, barb wire, razor wire, and wood plank fencing are prohibited.
      (B)   Gates and entry features located in the buildable area in association with courtyards shall not exceed a height from finished grade of ten (10) feet.
      (C)   Breaks within the fence or wall shall be provided for washes and significant wildlife corridors.
   (5)   Pool enclosures shall meet the following requirements:
      (A)   No pool enclosure (fence or solid masonry wall) shall be located more than fifty (50) percent (halfway) into any side or rear required yard (building setback). Pool enclosures are prohibited in any required front yard (building setback).
      (B)   Pool areas shall be secured from outside access by a masonry wall, ornamental iron fence, or combination thereof not less than five (5) feet in height above finished grade measured on the side of the fence opposite the pool.
      (C)   Access to the pool area, other than through the house, shall be through a self-closing, self-latching gate not less than five (5) feet in height as measured on the side of the fence opposite the pool.
      (D)   Gate mounting and latching hardware shall be positioned on the pool side of the gate.
      (E)   Accessory equipment such as pumps, heaters, and filters shall be enclosed by a solid wall at least four and one-half (4.5) feet in height to screen sound and sight from neighboring lots.
   (6)   Private tennis court fences and walls are allowed only in the Rural-190, Rural-70, R-3 and Lodging zoning districts and shall meet the following requirements:
      (A)   Private tennis court fences are not permitted in any required yard (building setback).
      (B)   Private tennis court fences shall not exceed ten (10) feet in height.
      (C)   Above the height of six (6) feet, the fencing shall consist of an open weave and not a complete barrier that inhibits flow of air and visibility.
      (D)   Private tennis court fences shall consist of a color which blends with the natural surrounding area.
   (7)   Public utility fences or walls are exempt from the height limitations and standards of this Ordinance if necessary to comply with national, state, or local safety and security standards.