The family office of the Chinese billionaire, Cheung Chung-Kiu, a property magnate, is buying the 45-bedroom home in Knightsbridge.

The house stands at 2-8a Rutland Gate overlooking Hyde Park, with grant state rooms, a swimming pool, spa and gym spanning across seven floors, The Times reports. 

The house was originally built in the 1830s as four townhouses but was converted into private property in the 1980s.

The mansion was previously the London home of Rafic Hariri, the late former prime minister of Lebanon, and Sultan bin Abdulaziz al-Saud, the late crown prince of Saudi Arabia.