746.03 PERMITTED OBSTRUCTIONS IN ANY YARD AREAS.
   (a)   The following uses and structures constitute obstructions which are nevertheless permitted in any required yard as follows:
      (1)   Awnings and canopies;
      (2)   Window air conditioners;
      (3)   Chimneys which project no more than three feet into a yard and which have a horizontal area not in excess of two percent of the actual area of the yard;
      (4)   Eaves, gutters or downspouts which project no more than sixteen inches into a yard;
      (5)   Fences, which shall have a maximum height of eight feet and which can be of any style except chain-link and stockade style fences;
      (6)   Flagpoles;
      (7)   Steps, excluding fire escapes;
      (8)   Walls not exceeding eight feet in height and not supporting or covered by a roof; and
      (9)   Accessory off-street parking areas which are not covered by a structure.