this is what google translate came up with (it's from a belgian website so it's all flemish), apologies for the mangled english:
A milestone with a stunning architecture and interior as well as intact: La Maison Carre is a project that the famous Finn Alvar Aalto realized for a French art dealer. Today you can visit the house, a stone's throw from Paris. La Maison Carré is near Montfort l'Amaury, a picturesque village near Versailles. Perfect for a weekend away.
Op bezoek bij Alvar Aalto in Parijs - KnackWeekend.be