The State-of-the-art modern Luxurious house in the border of Switzerland and France. The Main House with 12 beds and 15 bathrooms. The Guest House 15 beds and 18 baths. The home comes completely furnished it has a huge pool house a mens house and 1 Heliport. ChÃ¢teau de Crassy is a castle located in the town of Divonne-les-Bains (hamlet VÃ©senex-Crassy) in the department of Ain and the region Auvergne-RhÃ´ne-Alpes in France.The castle was built in the heart of an area of 63 hectares, crossed by Boiron that flows into Lake Geneva to Nyon (Switzerland), including forty agricultural parcels by the family De Prez. Originating in the canton of Fribourg in Switzerland, the Prez settled in the Pays de Gex.