The design for this 2,000 square foot home adjacent to a working vineyard in Sonoma begins with a simple, one-story rectangular floor plan, not unlike any number of recent -fabricated prototypes for low cost, sustainable single-family homes. But then, the shape of the house begins to morph with the push and pull of the surrounding environment. The simple rectangular box folds in two to embrace the open 1-acre site. Walls skew under the rectangular roof to focus on near and distant views. This then creates the tapering roof overhangs that strategically protect the private spaces from the harshest of the summer sun. In the end, the design retains the benefits of a simple plan with streamlined construction, and the economical and sustainable use of materials. Yet with just a few subtle shifts in the plan, we create a home engaged with its surroundings and far more able to take advantage of the best its site has to offer -- qualities often lacking in the simple box.