It operates Maison La Roche, a museum located in the 16th arrondissement at 8-10, square du Dr Blanche, Paris, France, which is open daily except Sunday.
It now owns Villa La Roche and Villa Jeanneret (which form the foundation's headquarters), as well as the apartment occupied by Le Corbusier from 1933 to 1965 at rue Nungesser et Coli in Paris 16e, and Villa Le Lac, which he built for his parents in Corseaux on the shores of Lac Leman (1924).
They are laid out at right angles to each other, with iron, concrete, and blank, white facades setting off a curved two-story gallery space.
Maison La Roche is now a museum containing about 8,000 original drawings, studies and plans by Le Corbusier (in collaboration with Pierre Jeanneret from 1922 to 1940), as well as about 450 of his paintings, about 30 enamels, about 200 other works on paper, and a sizable collection of written and photographic archives.
It describes itself as the world's largest collection of Le Corbusier drawings, studies, and plans.