Built at the turn of the 20th century, the Edwardian neo-baroque property served as lodgings for Peter during the early 1960s while he developed his restaurant empire.

Developer Amazon Property, in partnership with McLaren Construction Group, transformed 6-8 Maddox Street, Mayfair, into a four-bedroom duplex penthouse complete with two private rooftop terraces and a balcony.

The lower floors of the building were also converted into four apartments, all of which have now been sold.

Chris Lanitis, director at Amazon Property, said: “This spacious and luxurious duplex penthouse is located in Mayfair’s fashion quarter just a short stroll from the luxury boutiques of Bond Street, Conduit Street and Regent’s Street.

“Mayfair is London’s most sought after ‘blue-chip’ address, with more five-star hotels, top-rated restaurants and VIP clubs/bars than any other district in the capital.”

The penthouse is now listed through Knight Frank and CBRE.

Additional features include a large dual aspect reception room that spans the entire depth and width of the building and a 10-seat dining area.