The Middle Eastern royal family went on to purchase the neighbouring property for $54.5 million (£40m) and appear to have been granted permission to combine the three houses to create a 17-bedroom mega-mansion. Quite the home renovation! While the transactions were totally legal, the clan sidestepped paying $25.2 million (£18.5m) in stamp duty, money that would otherwise have ended up in the UK's tax coffers.

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Putin’s alleged mistress bought $4m condo in dodgy ‘Russian Doll’ deal