Design ensemble is a renovation project of living spaces of the Henri Matisse Social and Cultural Centre (Rive de Gier, Loire) implicating designers, members and staff of the centre. This participative process has allowed all the people involved to become aware of design and of its environmental issues. For two years Céline Michelland and Benoit Fournier have established links with each individual. Over time the work has produced new ideas which have enabled the premises to be transformed.