The UK's most expensive home is worth a whopping £250million, and it comes with an incredible 450,000 square feet of space.
Billionaire businessman John Caudwell is the proud owner of the lavish pad in London's Mayfair.
The 68-year-old Phones 4 U founder's property features a ballroom, bar and a cinema, reports The Mirror.
Sharing the home with his partner Modesta Vžesniauskaitė, the businessman recently became a father for the sixth time after the birth of son William.
Speaking to OK! Magazine, John admitted the decor in the property was "ostentatious" when he first bought it, meaning he had to strip much of the place down and start again.
"It was just a matter of making everything very tasteful, which ended up being a complete and total bare brick renovation," he told the magazine.
However, one room that didn't require as much doing up was the stunning, gold-adorned ballroom, which John reckons is the largest privately-owned ballroom in London.
Recalling his first impression of the room, he said: "The site was just unbelievable."
He put hardwood floors into the room and changed the curtains, but admits much of the room was as it is today when he bought the mansion.
He asked: "Who else has a room like this?" before jokingly adding: "Well, other than Buckingham Palace, of course."
Obviously no mega-mansion is complete without a cinema room, and John's is filled with printed, comfy-looking chairs and red velvet cushions - as well as a popcorn machine.
"It really is a fantastic room because you get amazing sound quality, amazing visual quality," John said.
For a personal touch, he's covered the walls in photos of family members posing as celebrities in iconic photos, like Audrey Hepburn and Marilyn Monroe. The mansion's stunning entertainment room, decorated to a Roaring Twenties theme, is used to host John's charity events.
But one of John's favourite features of the house is the car stacker lift, which is visible from within the house through strong glass, keeping his vintage motors on display.
His favourite room is the dining room, and it's easy to see why.
It is beautifully decorated in a style that mimics an east-Asian garden with blossom trees and a river.
Inspired by his love of Thai cuisine, John says: "It's one of my favourite rooms in the house and it was sort of my creation."
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