Although this house is ” the tree house , “literally , and that makes it no less interesting. It has two floors and is located in a dense grove of pine and holly, in New York. All surfaces of interior and exterior walls and cabinets are cypress , and the floor is oak . The first floor has room only for guests and a bathroom while the second floor has master bedroom , living room , dining room and kitchen. The house has lots of large windows to create a little privacy for nearby residents and reduce the intensity of the sun from the south.