Sometimes a backyard is so beautiful because of its views and location that it seems daunting to try and improve upon it. The goal is to make any addition seamless with its surrounding. The flagstone work from the upper terrace flows into the stairs and outdoor living space bordered by plantings and grasses melting into the native grasslands. Tucked away under South American hardwood and steel structure, the sitting and dining rooms gather next to a fire pit and a discreet fountain. Nothing else could be added now to this perfect setting, except good food and good friends.