A 7m-wide three-storey residence. The view from the north-facing street entrance looks clear through the ground floor to the garden on the south side. The interior is essentially one continous space connected via a black staircase — the only expressive element. The walls are faced with shelves, otherwise all design enhancements are eliminated. This house was designed by DER PLAN（Akira Koyama,  Tetsuro Fujiyama, Toshiaki Hisatomi)