Via Grosvenor Estates, the Business he inherited along with the dukedom in 1979, the Duke was the richest property developer in the United Kingdom and one of the country's largest landowners, with property in Edinburgh, Liverpool, Oxford, Cambridge, Southampton and Cheshire, including the family's country seat of Eaton Hall, as well as 300 acres (0.47 sq mi) of Mayfair and Belgravia in Central London. The Business also has interests in other parts of Europe. According to the Sunday Times Rich List 2016, the Duke was worth £9.35 billion (around US$13 billion), placing him sixth in the list and making him the third-richest British citizen.