A surviving low-cost house known as nagaya, in the town of Kunitachi, converted by sculptor and artist Masahisa Koike, into a self-contained "green" cottage. Koike two steps towards greening the property. One was to use the vertical space by growing plants that climbed the walls and reach the roof, the other was to soften the lines of the building by employing an ancient japanese style of wattle and daub.The walls and floor of the living room are stained with traditional ink. Inside the entrance is a tiny garden with a pond a white pebbles.