A trained interior architect and designer (graduated from the ESAG Penninghen in 2002), Grégoire has worked for the agencies of Bruno Moinard, Noé Duchaufour Lawrence and Gilles & Boissier, where he had the opportunity of working on major projects such as the headquarters of Hermès in Paris, the Cartier boutiques, a private mansion for Veuve Clicquot and most recently the Ciel de Paris restaurant at the top of the Montparnasse tower. At the same time he has also worked on his own interior architecture and furniture design projects, for which he won recognition from the VIA in 2011, 2012, 2013 and 2014.