Now the music mogul has decided to rent it out instead.
A source previously said: “Simon spent around £1 million tailoring it to meet his and his family’s needs, so he was definitely planning to make it his base in the UK.
‘However, when he realized that London traffic could make the relatively short trip so arduous, he determined it wasn’t the place for him and put it on the market.”
So one lucky fan could get the chance to live in Simon’s amazing home – as long as they have a LOT of cash.
It is not known how much exactly it is being rented out for, but houses in the area are going for £13,500 a month.
But this isn’t the only mansion that Simon owns.
The BGT judge has a very impressive property portfolio.
Simon owns another London property that is worth £10m.
The star also has a home located in Malibu (£1.8.3m) and Los Angeles (£19m).