The European Community of Alsace is restructuring the Baldung Grien College in Hoerdt. This school with a capacity of 500 students requires a partial rehabilitation aimed at correcting structural defects in the facades, improving the thermal performance of the envelope, bringing it into regulatory compliance including its accessibility and rehabilitating about 500 m² of surface in the heart of the externate, i.e. the former half board neutralised since the reconstruction of the half board in the courtyard in 2007. The ERDF assists the community in carrying out energy efficiency works, the objective of which is to achieve the BBC renovation level.