The core activity of the company 'L'Atelier de Jean' consists of planning and executing construction and renovation projects using natural and sustainable materials. The activities include in particular: renovation and conversion of buildings, including the use of natural materials such as wood, clay and lime; insulation and thermal insulation of buildings; construction of facades and roofs; masonry and carpentry work; installation of windows, doors and other building elements; and consulting and support in the selection of sustainable materials and techniques. The company focuses on the use of natural and sustainable materials and aims to build and renovate buildings that are both environmentally friendly and economically viable.