This is a housing in the suburban area of kanagawa prefecture specially designed for a car lover owner. The exquisite feature of this architecture is its movable floor. Its concept is such that housing should meet changing needs as situations change with time, both short-term and long-term, like inviting guests and children leaving home when grown up.
Movable floor that can change in its size enables to maximize the utility gained from the total volume of the architecture unlike movable partitions and furniture.

Regarding housing as a machine for residential living, such machine should be a more useful machine.