A fence, wall, hedge or shrubbery may be erected, placed, maintained
or grown along a lot line on residentially zoned property or adjacent
thereto to a height not exceeding six feet above the ground level,
except that no such fence, wall, hedge or shrubbery which is located
in a required front or corner side yard shall exceed a height of 2
1/2 feet. Where such lot line is adjacent to a non-residentially zoned
property, there shall be an eight foot limit on the height of a fence,
wall, hedge or shrubbery along such lot line.