The Plus House created by Masahiro and Mao Harada from Mount Fuji Architects Studio in hizuoka Prefecture on Japan’s main island of Honshu. Plus House shows off their talents at being bold but not grandiose, and at involving the surrounding nature in delicate detail but without giving up the individuality and presence of the building.The two storey modern house is made of simple two-level concrete structure, hosting private rooms and a bath on the lower level, and salon and kitchen on the upper. The water for the bedrooms and bath comes directly from a natural hot spring. The exterior is clad entirely in white water-polished marble. The interior is also covered in white marble that reflects the blue light from the south and green light from the west.