Overlooking the waters of Puget Sound with the Olympic Mountains beyond, this home, designed for a couple and their two teen-aged children, was built on a rare unimproved northwest lot.  Unencumbered by existing construction, the three-story house parallels the sound and takes advantage of the sloping topography, sweeping views, towering trees and a quiet stream to the south. The Sound is visible from virtually every room with a see-thru living and dining space connecting the entry to a series of terraced outdoor patios to the west.  The upper floor bedrooms are kept private and shielded from the street by frosted glass and clerestory windows.