US real estate builder Federal Development has been selected by the French public development agencies EpaMarne and Epic de Marne la Vallée to develop 160,000 m[sup]2[/sup] of commercial space as part of a large mixed-use project at the Cité Descartes site in Marne-la-Vallée, near Paris. The project will mostly consist of office, hotel and retail accommodation, French magazine Business Immo reported.