In his built project for the Todoroki residence (1976), the radical use of the grid produces an evolution of the traditional Japanese interior planning, where spaces were combined in layers. Every element which composes a conventional house is reinvented and relocated. The façades are just the exterior container of the multiple sequences of spaces nesting one within another. The openings are multilayered: they don’t just connect the interiors with the exteriors, but penetrate right into the core of the building. Their location and dimension, as well as for every interior wall, always refer to the three-dimensional main grid and its sub-divisions.