A one storey house on a quite steep slope. That was the challenge imposed by topography and client. A most welcome challenge of course: to us one storey architecture is the best condition for good architecture. Its solution stays in the section of the project: a big horizontal prestressed slab of fifteen by twenty meters sitting on the natural land on one hand and laying on two gigantic round pillars on the opposite site. Above twenty pillars sustain the roof. Under a main space is created for outdoor living.