In the T district:
A. A solid masonry wall not less than five feet (5') nor more than six feet (6') in height shall be located along all interior property lines adjacent to a residential use or zone, such wall to be reduced to three feet (3') in height at the front setback line of the adjacent residential use or zone;
B. There shall be a three foot (3') high solid masonry wall located along the required front setback line. (Ord. 1000 § 22.20(I), 1955)