No more than fifty percent (50%) of the setback areas required by section 10-3-2008 of this article may be paved. In addition, those areas not occupied by walkways, driveways, or paved plazas shall be fully landscaped consistent with the character of the C-5 zone. No walls, planters, or other structural or landscaping elements shall block visual access of required public open space areas from the public sidewalk. (Ord. 94-O-2193, eff. 3-4-1994)