The house is located in a small village in the area of Lyon on a very steep slope and facing an open landscape. It is situated on the fringe of a natural reservation where no house can be built. The structure is made both in concrete and steel. All the materials are natural and untreated for them to keep their original aspect. Concrete is used for the envelope and the floors; steel is used for the pillars and for the window frames ; and untreated exotic wood (iroko) is used for the external curtain.