as part of a "relaunch" by co-owner Paddy McKillen. The top two floors were replaced by a four-storey, 14-bedroom extension that included a penthouse with swimming pool, gym, private lake, and grand salon. A excavation was dug beneath the Art Deco 1920s extension to create a five-level basement. Construction work was largely done by hand to avoid disturbing guests, and the hotel continued in operation throughout the building work. The project was recorded in a BBC documentary series, The Mayfair Hotel Megabuild. Notable guests Actors, directors, and entertainers who have used Claridge's include Cary Grant, Audrey Hepburn, regular visitor Alfred Hitchcock, Brad Pitt, Joan Collins, Mick Jagger, U2 and Whitney Houston. In his memoir The Moon's a Balloon, David Niven wrote that for film producer Alexander Korda, "Home was the penthouse at Claridge's". The hotel lobby and several guestrooms appear in the 2001 Stephen Poliakoff's BBC television drama Perfect Strangers. Claridge's has hosted visiting royalty and guests of the Royal Family. The late King Hassan of Morocco travelled with his own mattress, but at the hotel he used a Savoy Mattress. Impressed by the quality, he ordered 24 identical mattresses from the Savoy for his palace. During the Second World War, the King of Yugoslavia and his wife spent much of the Second World War in exile at Claridge's, and suite 212 was supposedly ceded by the United Kingdom to Yugoslavia for a single day (17 July 1945) to allow their heir, Crown Prince Alexander, to be born on Yugoslav soil, although no documentary evidence now exists to support the story. At the end of the Second World War, when unexpectedly defeated in the general election of 1945, Winston Churchill was temporarily without a London home and took a suite at Claridge's. In December 1951, West German chancellor Konrad Adenauer secretly met World Jewish Congress president Nahum Goldmann at Claridge's to begin negotiations on German reparations to Jewish survivors of the Holocaust. Restaurants and other facilities Claridge's has been described as London's most "food centric hotel". Claridge's offers afternoon tea in The Foyer and Reading Room. There are three public ground floor bars; the Foyer and Reading Room acts as the main bar, when not being used for afternoon tea; The Fumoir, a former cigar bar until the smoking ban prohibited indoor smoking in 2007; and the Painter's Room, opened in 2021. Davies and Brook, with head chef Daniel Humm,