Named from the plan form, this thin summer house is actually a study in reversals. It presents a blank opaque façade to the highway, from which it can only be seen at one point between a geometric grid of (now full-grown apple trees). The opposite, or private, face opens onto an idyllic Walden Pond scene of “swimming hole,” forest and crabgrass that in turn reflects back onto the neo-Mondrian (unnatural) façade. Thus an opaque but natural material (vertical cedar boards) is juxtaposed with a geometrically arrive-at grid of tree forms and this grid is opposed to a natural scene that in turn is juxtaposed with a transparent geometric faced. Exposed ducts electrical conduits and raw wooden joists reinforce the rustic nature of this weekend retreat.