Hyde Park Court was constructed by businessman Jabez Balfour and his associate, South London builder James William Hobbs, as an exclusive apartment block.

[5] Bennett closed the Hyde Park Club in December 1901 and converted the building to a hotel over the following months.

César Ritz served as a consultant for the conversion, with design work done by his favored architects, Charles Mewès and partner Arthur Joseph Davis, who continued to oversee renovations at the hotel for many decades.

[8] The hotel was visited by several members of the royal family, including Queen Mary (wife of George V) and Edward VIII.

The doors were opened during the coronation of King George VI and Queen Elizabeth in 1937 when the Crown gave special permission for the guests to use the park entrance.

Guests who have been granted access to this entrance include members of the Japanese Imperial family, former South African Premier General Hertzog, and a President of Uganda.

A few such events were Lady Doris Vyner's silver wedding party in 1948, with the King and Queen as guests of honour, and the Balaclava Ball, hosted by the five cavalry regiments who had taken part in the Balaclava charge, also attended by Elizabeth II, Prince Philip, and the Queen Mother.

The hotel hosted the 80th birthday party of Margaret Thatcher which was attended by Elizabeth II and Prince Philip, along with former Prime Ministers John Major and Tony Blair, former deputy chairman of the Conservative Party Jeffrey Archer and entertainers Shirley Bassey and Joan Collins among others.

[16] The hotel is home to three restaurants: Dinner by Heston Blumenthal, The Aubrey, and The Rosebery Lounge, as well as the Mandarin Bar.