Denise Coates

Mrs Coates, 53, earned a director’s salary of £421million for her role as chief executive of Bet365, plus another £48million dividend for her 50 per cent stake in the business.

Plans for the mega-mansion include an artificial lake, sunken tennis courts, stables, ornamental gardens, workers' cottages and a boathouse.

In December 2018 it emerged that Mrs Coates spent an eye-watering £5.5million buying up hundreds of acres of farmland which surround her new futuristic home, snapping up 12 separate plots of land since 2014.