Tomohiro Hata - Belly house, Kyoto. The project is located in an area governed by strict building codes limiting size, shape, and materiality of new constructions. Due to the restrictions and formalities that influenced the design of the exterior, the architects sought to create a more informal and flexible space on the interior. A plywood “tree” was inserted at the center of the house, and rises through all four stories of the building. Separated from the exterior walls and designed with low ceilings and a unique materiality, the spaces within the tree provide privacy, intimacy, and warmth for the occupants. Adjacent spaces act as a transitional zone between the central core and the city, and have white walls, double height ceilings, and ample windows to encourage more public activities. Via.