27.04.080 BUILDING HEIGHT.
"Building height" means the vertical distance, measured from existing grade at any point along the perimeter of a building, to the highest plate line of the structure directly above that point, regardless of whether that point is on the same plane as the building where it touches the ground. Different setback requirements as a result of different building heights shall be applied to different portions of the building. Setback requirements determined by building height may utilize the height of an intermediate plate height of the building plane that touches the ground where the building above that intermediate plate height is set back a distance equal to 25% of the width of the structure at that point from the building plane that meets the ground, as illustrated in the following figure: