Walls, including party walls and fire walls, located at or within two feet of a side or rear lot line. 2.6.3.2.2 Louvers, glazing, doors or other movable elements shall not reduce the required opening to less than the specified 50%. 2.6.3.2.3 Enclosing materials below such design flood elevation shall be flooddamage resistant, including but not limited to metal pickets or wrought iron, fencing, co