(a) When an E1-zoned plot is contiguous to any residential district, an adequate landscape buffer shall be maintained adjacent to the R-zoned property. The depth of this buffer along street frontages shall be at least equal to one-half the height of the building measured from the property line. The depth of this buffer along interior lot lines shall be at least equal to one-half the height of the building, or 15 feet, whichever is greater. Open parking otherwise in conformance with standards listed in this chapter may be permitted within the required buffer area except in the last 15 feet.
(b) Required Fences or Walls. A solid fence or solid wall is required for parcels abutting residential districts as provided in Section 27.84.030.