A FIRE has ripped through a mansion on one of the UK’s most expensive streets where grand homes sell for ￡13million.

       The derelict house now lies in ruins after it was gutted by the blaze which started on the road known as ‘Billionaires’ Row’ at around 12.40am on Friday.

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       The fire gutted the inside of the derelict mansion Credit: W8media 14

       The fire broke out at around 12.40am on Friday Credit: London Fire Brigade 14

       The ground floor of the three-storey home was completely wrecked Credit: W8media

       Around 70 firefighters tackled the fire which engulfed the multi-million-pound property on The Bishops Avenue in Barnet, London.

       The fire raged for nearly three hours before being brought under control by the London Fire Brigade at around 3.30am.

       The Sun Online’s exclusive pictures reveal the three-storey mansion was completely wrecked with the roof destroyed and the ground and first floor also extensively damaged.

       The fire was so intense it sent thick smoke billowing into the air which could be seen and smelt in central London.

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       The cause of the fire has not yet been determined.

       Locals in the area were warned to keep their doors and windows shut due to the amount of smoke.

       The Bishops Avenue which runs from the north side of Hampstead Heath to East Finchley is one of the country’s wealthiest.

       Palatial properties can sell for around ￡13m and attract wealthy owners including the Sultan of Brunei.

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       Singer Harry Styles, who earlier this year swept the board at the Brits, is a tenant there.

       However, locals who have lived in the area for some time have previously said they are being pushed out of the area.

       Athena Norman, 67, has lived in East Finchley all her life and has seen the area transform from being “proper working class” to a place that costs lots of money to live.

       Now, she says, even more modest houses around the park sell for around ￡2m as “a lot more lawyers are moving in”.

       The house featured in the BBC’s The Apprentice is also on the street.

       The property where the hopefuls stay is the luxurious mansion called Huxley House and is worth ￡17.5m.

       It was put up for sale earlier this year with posh estate agents Sotheby’s and will no doubt attract deep-pocketed buyers who are able to afford the hefty price tag.

       It's not known who owns Huxley House, but Billionaires’ Row, which has 66 mansions, is home to some of the world’s richest people.

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       The Saudi royal family sold ten properties along the street for ￡73million, while the Sultan of Brunei is thought to own at least one house there.

       Beatle Paul McCartney’s ex Heather Mills lived in an apartment in one of the houses.

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       The fire raged for nearly three hours Credit: Twitter//LondonFire 14

       The smoke was so think people in central London could see and smell it Credit: Twitter//LondonFire 14

       Residents were warned to keep their windows and doors shut Credit: Twitter//LondonFire 14

       The LFB say 10 fire engines were rushed to the blaze Credit: W8media 14

       The blaze raged for nearly three hours before the London Fire Brigade brought it under control Credit: W8media 14

       Part of the mansion's roof was destroyed in the fire Credit: W8media 14

       The cause of the fire has not yet been established Credit: W8media 14

       Around 70 firefighters tackled the blaze Credit: W8media 14

       The huge property had been left derelict Credit: W8media 14

       The grand property used in The Apprentice is also located on the road 14

       The Bishops Avenue is one of the country's wealthiest streets Credit: Alamy