The site of the Saint Eloi hospital is comprised of a collection of buildings at the centre, encompassed by a circular access road feeding the separate satellite buildings that nestle in greenery at the edge of the property. The project includes the creation of two distinct groups of building: within the circular road, the extension of the existing medical facilities; to the outside, the Regional Institute of Biotherapy.

The latter takes the form of a comb, made up of six parallel “teeth” running perpendicular to the curve of the road. Three independent sub-groups are inserted around a shared facility: laboratories for the teaching hospital, the INSERM (French national institute of health and medical research) and private companies. The facades are composed of a textured concrete structure, insulated internally. The strip bands of windows to the laboratories and offices give onto tree-filled courtyards. The meticulous laying out of the concrete, left raw or occasionally painted in bright colours, and the regular rhythm of openings protected by external solar shading or slats, give the ensemble both unity and singularity.