Les Ateliers 4+

Les Ateliers 4+ is a national architecture and construction group founded in 1994, with offices in Paris, Lyon, Marseille and Chambéry. The group brings together complementary disciplines to support projects across the building lifecycle, from initial design and project development to construction and delivery. Its services include architectural conception and design, engineering, construction works across all trades, real estate project development and innovation.

These areas of expertise are organised as distinct “ateliers,” including architecture, engineering, construction, development, creative practice and a dedicated innovation lab. Working with both private and public clients, Les Ateliers 4+ delivers projects across a broad range of building types and sectors. Its experience includes industrial and logistics facilities, data centres, healthcare buildings, offices and other tertiary spaces, housing, retail, education and leisure.

By combining varied skills within one organisation, the group offers clients an integrated approach to building and project delivery. Its stated vision, “singular talents, plural vision,” reflects this multidisciplinary model and the range of expertise brought to each project