This building was officially commissioned as the home to the monarch in 1837 during the reign of Queen Victoria.
Spread across 90,000 sq ft of floor space, the USD 450 million Witanhurst Mansion features among the largest mansions in the world.
The current worth of Villa Les Cedres is USD 413 million.
The value of Fairfield Mansion is pegged between USD 267 and USD 500 million.
House number 9a of Kensington Palace is also on the list of the most expensive real estate in the world. Owned by Indian-origin billionaire Lakshmi Mittal .
Owned by Oracle founder Larry Elisson, this estate is the epitome of grace owing to its Japanese architecture. Its current worth is USD 200 million.
A Situated in Beverly Hills, Palazzo Di Amore is one of the most expensive houses in the world. The current worth of Palazzo Di Amore is USD 195 million.