Ben Murphy has been promoted from head chef to chef-patron at D&D London's Launceston Place in Kensington.
He announced the move on Instagram with the words: "Grateful for this new title".
The three-AA-star restaurant appointed Murphy as head chef in January 2017. He had previously headed the kitchen at the Woodford in South Woodford, north-east London.
Murphy was named Young National Chef of the Year in 2012, the year after winning a World Skills Gold Medal.
The one-time protégé of Pierre Koffmann has worked at the three-Michelin-starred Les Prés d'Eugénie in the south of France; three-Michelin-starred Épicure Restaurant at Le Bristol in Paris; and the two-Michelin-starred Greenhouse Restaurant in Mayfair, London.