A. A six foot (6') high fence or wall shall be constructed at the top of all slopes where the tops of slopes are property lines between separate ownerships.
B. A six foot (6') high fence or wall shall be constructed along the perimeter of all areas considered by the commission to be dangerous to health and safety.
C. A six foot (6') high solid masonry wall shall be erected along the property line or zone boundary lines to separate industrial and commercial districts and/or uses from abutting residential districts, as follows:
1. Where the zone boundary is at a rear lot line which is not on a street, the wall shall be on that line.
2. Where the boundary is a side lot line, the wall shall parallel the side lot line, to be reduced to three feet (3') in height in the area set forth as a required front yard for the abutting residential district. The wall paralleling the front property line shall be set back from the property line not less than ten feet (10'), and the space between the wall and the front property line is to be landscaped and maintained.
3. Where the boundary is a street, the wall shall be set back from the property line a distance of ten feet (10'), the space between the wall and the property line to be landscaped and maintained.
4. Where the boundary is an alley, the wall shall be on the property line along the alley.
5. Nothing in sections 18.168.020 through 18.168.040 of this chapter shall be deemed to set aside or reduce the requirements established for security fencing by either local, state or federal law. (Ord. 1000 § 43.20(b), 1955)