Kyodo House is a minimalist residence located in Tokyo, Japan, designed by SANDWICH and team Low-energy. Centered on a living room oriented to face the sun when it passes due south, the program of this house uses a number of overlapping boxes to organize the interior space. In winter, air warmed by the sunlight extends throughout the space, while in summer; a cool breeze from the windows passes through. The house has a study room that functions as a ventilation tower, and from its windows you feel the greenery of surrounding trees. Air conditioners are not needed in this house.