1147.03  FRONT YARDS.
   (a)   Where forty percent (40%) or more of a block frontage is improved with buildings, no part of any new building shall project beyond a line joining the two adjacent corners of the buildings on either side thereof.  Where there is a building on only one side, no part of any new building shall project beyond a line projected from the corresponding adjacent corners of the two nearest buildings on that side, except that no building shall be required to provide a front yard greater than fifty feet.
   (b)   Interior lots having frontage on two streets shall provide the required front yard on both streets.
(1980 Code 153.122)