Sites are being sought in west London for a sister restaurant to Heckfield Place, a new country house hotel in Hampshire.
The kitchens in both venues will be headed by Skye Gyngell, who was formerly the head chef at the Petersham Nurseries Café, near Richmond.
Retail property advisor CWM has been appointed to find a site of around 3,000sq ft for an 80-seat restaurant, with outdoor space, in Notting Hill, Holland Park, Ladbroke Grove, Chelsea, Fulham or Kensington.
James Weller of CWM said that the restaurant will appeal to 25-60 year old west Londoners who like to eat in glamorous, chic surroundings.
"The aim is to create a restaurant with a modern, sophisticated feel," he explained. "A large focus of the restaurant would be bowls of seasonal fruit and vegetables on display giving it a market feel with a semi-open kitchen giving a sense of theatre.
"The menu has been selected to appeal to a wide health-conscious audience who like to eat well."
The restaurant is to be developed by the owner of Heckfield Place, private investment company, the Morningside Group.