Atelier LWD was an architecture studio led by Guy Lagneau, Jean Dimitrijevic and Michel Weill that was active from 1952 to 1985.
It later took the name of "Atelier d'Etudes Architecturales" (ATEA) (Architectural Studies Workshop) with the addition of Paul Cordoliani, Henri Coulomb (1927–2006), Renzo Moro and Ivan Seifert (1926–2008).
[1] Guy Lagneau (1915–1996) and Michel Weill (1914–2001) met in the studio of Auguste Perret in the National School of Fine Arts established in 1943.
[3] The architects created the ATEA in association with a consulting firm, Société d'études techniques et d'aménagements planifiés (SETAP).
Lagneau also participated as an individual in preparation of master plans and urban development in the Paris region between 1962 and 1965, contributing to creation of new towns.