The north side of the houses is sunk into the slope of the site, from which the roof rises in a planted concave curve.
One of the main conditions of the brief was that the water for the pools should be heated exclusively by solar energy.
As part of a large-scale rehabilitation scheme, this former nuclear research institution was redeveloped as a general European research centre.
For over 100 years a house has stood on this site on a hilltop 1,300 m above sea level in the canton of Appenzell.
This low-energy, ecological development has a prefabricated timber structure that was erected in two days.