Designed and built as a remodel on Liberty Lake, WA waterfront with a neighboring house encroaching upon the south property line, a roadway on the east and park access along the north façade, the structure nestles on a underground river. As both avid environmentalists and world travelers this house was conceived to be both a tribute to pragmatics of an efficient home and an eclectic empty nesters paradise. The dwelling combines the functions of a library, music room, space for children, future grandchildren and year round out door access. The 180 degree pergola and sunscreens extend from the eaves providing passive solar control and utilizing the original house’s footprint. The retaining walls helped to minimize the overall project’s environmental impact.