The owners of Kitty Fisher’s, which became London’s hottest restaurant when it opened two years ago, plan to add four or five more locations that replicate its casual vibe while branching into new kinds of food, according to Bloomberg.

The newswire said that the model for this expansion strategy is that of chef April Bloomfield in New York, who enjoyed huge success at the Spotted Pig gastropub, before opening a variety of new restaurants, including one specializing in fish and another selling burgers.

“The success came early and a lot of people were trying to get into a small space,” co-founder Tom Milburn said of the 34-cover site. “Also, we were telephonically challenged. We gave ourselves an hour or two a day to answer the phone because we were doing service and there were no other hands to do it.”

The expansion is set to begin next year. Oliver Mullion and Milburn said a pub could do well, and perhaps a site close to the original Kitty Fisher’s on Shepherd Market in Mayfair. They also are considering a focus on fish, and a restaurant with drinks and small plates.

“We’ve had this success over two years and it is now we feel the time is right to grow,” Mullion said. “The plan is not to roll out identikit Kitty Fisher’s over the city, but we want four or five sites across the capital, all being fiercely independent restaurants.”