In 1994, he co-founded Altarea, a shopping center development real estate investment trust. In 2007, it acquired Cogedim, a housing and office property development company. Since then, Altarea Cogedim has pursued its development on the three main property markets: Retail, residential and offices. The group created the retail-entertainment concept with Bercy Village and spearheaded a new approach to edge-of town Retail with Family Village shopping centers. In 2010, it acquired Cap 3000, one of France's leading regional shopping centers located on the outskirts of Nice. It also developed the housing and office property program for the former Laennec Hospital site in Paris' 7th arrondissement and renovated the First Tower in the La Défense Business district.