The nursing home is designed according to bioclimatic architectural principles. The building’s enveloppe is almost opaque towards the North and opens generously Southwards. Five large strips of glass circle the enveloppe in the manner of gills, and capture the southern light on the roof and the eastern and western façades. This allows to make the most of the natural heat and sunlight. So as to avoid any risks of overheating in the summer, these glass strips are protected by the cladding which blocks high sunbeams in the summer (60°) but allows the low winter rays to come in (38°). The heating is provided by a geothermal system on groundwater, connected to a mixed floor heating network (for the circulation) and low heat radiators (for the medical offices).