(A)   Usable open space. There shall be provided on each lot an area at least equal to the required rear yard of the lot area for usable open space which shall be completely open except for projections as permitted in § 155.214 and which shall be effectively separated from areas of automobile circulation.  Such area may be located anywhere on the lot other than in the required front or side yards but shall have no dimension less than 20 feet.
   (B)   Permitted encroachments into the rear yard. In addition to the projections permitted in § 155.214, the main residential building may project into the required rear yard up to, but not within, ten feet of the rear lot line.  This projections shall observe the required side yard and shall be no wider than one-half of the average lot width at the projection.
(Ord. 616, passed 9-23-2013)