How do you build a luxury vacation rental property in an exclusive and highly regulated building location? Go underground.  Talk about alternative living – Switzerland’s Villa Vals is built over the only thermal springs in the Graubunden Canton in Switzerland, and dug into the mountainside adjacent to the famous Therme Val hotel and spa .

Forgiving it all the designer luxuries – this makes going underground a very attractive prospect for those seeking to ski, hike or cycle.  Marketed with the tagline, “Dutch Design” meets “Swiss Quality” it evokes a bunch of design possibilities.  Add a few green amenities like geothermal heating & cooling and a gray water system and you’d really have something.