The former nautical centre of Quincieu is a wasteland in the heart of the urban area of the Puy-en-Velay agglomeration community. This equipment has been useless since 2012 and is undergoing a severe deterioration, vandalism and constitutes a black spot while its situation is particularly strategic because it is located at the foot of the historic area on a site of high heritage value. The objectives of the operation are to rehabilitate the wasteland and restore a sporting vocation to this equipment through an exemplary rehabilitation both from an architectural point of view and in terms of energy performance. Accessible by all means of transport alternative to the car, the geographical location of the site is also an important asset for the project. The remediation of the site will also allow the decontamination of the building which contains many asbestosed materials or with lead.