Switzerland Development Group (SDG) has unveiled plans for its new luxury development in Leukerbad, with construction work scheduled to commence in spring 2012.

51º Spa Residences has been designed by a team including Michael Graves and Associates; Marc Michaels Interior Design; and WET and will be undertaken in phases. Two buildings of residential apartments are included as part of the development, with a total of 30 to boast in-home thermal spas with unlimited supply to Leukerbad's thermal waters.

The residences will have access to facilities such as a children's club; high-end eateries; and a private wine cave, while a 900sq m (9,688sq ft) Banya Experience Spa is also proposed. Included in the spa complex will be a number of thermal water pools; a Russian-style Banya Suite connected to an indoor/outdoor bathhouse; a crystal steam bath; and an ice fountain.

Under A Tree - a division of Amy McDonald and Associates launched in 2006 - has been recruited by SDG to work on the spa element of the 51º Spa Residences development. It is hoped that the first residential building will be completed in late 2013, with the second to open in late 2014.

A hotel developed in collaboration with the Ritz-Carlton Hotel Company is also earmarked as part of the development, and is earmarked to open in 2015.