After several experiences working in architecture agencies, Sébastien Loiseau, architect “DPLG” graduated from the Architecture school of Normandy, and Olivier Landrin, architect “ENSAIS” graduated from the Architecture school in Strasbourg, formed BasaltArchitecture in 2001. Basalt Architecture counts today about twenty collaborators. Situated in both Paris and Marseille, BasaltArchitecture works either on new constructions or rehabilitations.