Burglars stole £50 million worth of jewellery from the London home of Tamara Ecclestone, the heiress and socialite, on Friday, it has been claimed.

Thieves evaded detection from the 24-hour security at Ms Ecclestone’s £70 million mansion on a street dubbed “billionaire’s row” in Kensington, West London. Tamara is the daughter of billionaire Formula 1 magnate, Bernie Ecclestone.

The raid, which is believed to have lasted 50 minutes, took place after the 35-year-old heiress left England to spend the Christmas period abroad.

Ms Ecclestone shares her 57-room property with husband Jay Rutland and her five-year-old daughter Sophia.

Those behind the break-in are believed to have gained access to the property via the back garden.

A spokesperson for Mr Ecclestone confirmed the robbery to The Sun: “I can sadly confirm that there has been a home invasion. Internal security are cooperating with police in this matter.

“Tamara and family are well but obviously angry and shaken by the incident.”

A neighbour described the robbery as shocking “because it is one of the most secure houses in London on one of the most secure streets in London.”

“Whoever did this was in the house for 50 minutes in total and had time to smash open the safes that are hidden in Tamara’s dressing room and Jay’s dressing room.