A solid masonry or concrete wall not less than six feet nor more than eight feet in height shall be erected between commercially zoned property and abutting residentially zoned property at the time that any building or structure is erected on the commercial property. The height of the wall shall be the vertical distance measured from the top of the wall to the lowest point to grade within three feet of such wall on the commercially zoned property. The wall shall be constructed on or immediately adjacent to the line dividing the residential and commercial properties. Any fence constructed in accordance with this section need not comply with the height requirements of section 16-309. A new wall shall not be required where there is an existing wall which substantially conforms to this section on the abutting residential property. If the existing wall on abutting residential property is the only wall that conforms to this section, and it is removed, a new wall shall be required.
(`64 Code, Sec. 34-9.1) (Ord. No. 1376)