Toyokazu Watanabe designed this project influenced by Adolf Loos's Raumplan concept and the theory on the prominence of monuments and graves in architecture. He introduced the themes of the ziggurat and the mastabas on the top of his Nakano house, a direct reference to Loos' project for the unbuilt mausoleum for art historian Max Dvorak.

The house is constructed in raw concrete and made up by a superposition of volumes pierced with windows of different shapes arranged to underline symmetries. The Nakano house is a simple volume with a central squared plan which is composed by two floors. On the ground floor are the bathroom, a bedroom and a large living room with a kitchen, above is an open space with the stepped top and light coming from above. A central block hosts the staircase. On the outside, an horizontal joint in the concrete elevation works as a stringcourse.