A. No part of a yard, other than open space, or off-street parking or loading space required in Chapter 17.64 PMC or in connection with any building for the purpose of complying with this title shall be included as part of a yard, open space, or off-street parking or loading space similarly required for any other building.

B. No yard or lot existing as of January 17, 1978, shall be reduced in dimension or area below the minimum requirements set forth in this title. Yards or lots created after January 17, 1978, shall meet at least the minimum requirements established by this title. (Ord. 454 § 4, 1992)