1.   On a corner lot, nothing shall be erected, placed, planted or allowed to grow in such a manner as to impede vision between a height of two and one-half (2½) feet and ten (10) feet above the centerline grades of the area described as follows:

   That area bounded by the street right-of-way lines of a corner lot and a straight line joining points on said right-of-way lines twenty-five (25) feet from the point of intersection of said right-of-way lines.

2.   In any district, fences and walls not exceeding seven (7) feet in height are permitted within the limits of side and rear yards, which do not front on any public street. A fence or wall not exceeding four (4) feet in height is permitted within the limits of the front yard setback or side yard setback fronting any public street. In the case of retaining walls supporting embankments, the above requirements shall apply only to that part of the wall above the ground surface of the retained embankment.

3.   In any district where a fence or wall is required by a section of this chapter, the Subdivision Regulations (Chapter 170), or other provision of this Code of Ordinances, to serve as a screening wall, buffer wall or other separating or protective wall, the restrictions of Subsection 1 above shall yield to the requirements of the specific requirement.

4.   A building permit shall be obtained prior to the construction of any fence or wall, except for single section privacy panels abutting a house and not exceeding eight (8) feet in length. Privacy panels do not require a building permit but shall still comply with all other requirements for fences including being constructed only out of permitted materials. Fences inside a garden and not exceeding eight (8) feet in length shall not require a building permit and may be constructed of any material.

5.   In the construction of any fence the finished side, if any, shall face outward. Posts and other supporting elements shall be on and face the property where the fence is being erected.

6.   Within any overland flowage easement only a chain link fence may be constructed.

7.   Fences shall be constructed of customarily used materials such as chain link, wrought iron, aluminum, wood, or polyvinyl chloride (PVC). Wood fences shall be constructed of treated lumber, cedar, redwood, or similar types of wood that are resistant to decay. Fence materials may include sheet metal or corrugated metal as long as the metal has finished edges, is framed by wood, and has a consistent or even height. Fences shall not be constructed out of materials such as chicken wire, temporary construction fencing, snow fencing, plywood, or components commonly used for penning of livestock.

8.   Walls shall be constructed out of brick, stone, textured concrete, precast concrete, or tile block.

9.   All fences and walls shall be constructed in a sound and sturdy manner and shall be maintained in a good state of repair, including replacement of defective or damaged parts, painting, and other acts required for maintenance.

10.   Alterations, modifications or improvements of more than fifty percent of an existing fence shall require a building permit and shall require the owner to bring the fence into compliance with all current fence requirements if it is not already in compliance. Modifications of less than fifty percent of an existing fence do not require a building permit.

11.   Subsection 5 through 10 of this section shall not applicable in the A-1 Zoning District.