Our spa retreat takes advantage of this local resource by providing 600 sm for a single family residence as well as a comfortable therapy area for the spa and sauna. The building is anchored to the site by its relationship to natural elements. Four trees and a pond present a natural matrix from which our design arises. The formal strategy begins by encircling one existing tree totally and allowing the other trees to erode the perimeter, forming concave spaces in the donut-shaped form. In this way, trees and architecture form a figure-ground relationship.