The most sought after address in London, England at One Hyde Park is attracting a lot of interests from the world’s billionaires. Designed by Rogers Stirk Harbour + Partners and decorated by Candy & Candy, the apartment overlooks Hyde Park. The building is located in Knightsbridge adjacent to Hyde Park and the Mandarin Oriental. The penthouse apartments are some of the most expensive in London, with prices ranging anywhere from £30 to £140 million.