What you see

The pilotis. The house appears to float — a white box suspended above a green lawn on slender round concrete columns. The ground floor is almost entirely open: a curved entrance drive, a servant’s apartment, and a chauffeur’s garage are tucked beneath the main living level, which sits at the height of the garden treetops.

The promenade architecturale. Le Corbusier designed the sequence of entry as a continuous architectural promenade. You drive in under the building, enter a hall, and ascend by a central ramp — not stairs, but a gently sloping walk that spirals through all three levels: ground floor, main living floor, and roof terrace. This ramp is the spine of the house.

The free plan. The main floor has no fixed walls dictated by structure. Rooms flow around a central core of bathrooms and services. The living room, dining area, kitchen, and three bedrooms are arranged freely, with glass sliding doors opening the living room onto a sheltered terrace above the garden.

The ribbon windows. Continuous horizontal strips of glazing run along all four elevations, giving even, diffused light and panoramic views across the Seine valley. The bands of white wall above and below the windows make the house read as horizontal layers.

The roof terrace. The flat roof is a garden room — a solarium with a curved windscreen wall, a ramp continuing the promenade up to a sun deck, and views across the Ile-de-France countryside. This is the “fifth point”: the roof garden replacing the ground.