A moped gang targeting wealthy residents in north London has been captured on CCTV attacking a businessman with a hammer outside his £2 million home.

The traumatised resident, who the Standard has agreed not to identify, today said he was leaving the UK this week terrified the gang will return.

He told the Standard: “It isn’t a question of ‘if’ they come back. They will come back. I have been driven out of my own house and the country.”

The robbery in broad daylight has been linked to a series of ram-raids in Hampstead and neighbouring Hampstead Garden Suburb in recent months. This is the first time the gang of four has been caught on camera.

The man in his 50s was sweeping the street outside his home near Hampstead Heath when four men on two mopeds pulled up outside.

He attempted to defend himself with his broom and flee inside as two men clad in black and wearing crash helmets charged into his driveway.

One of the men grabbed his brush and started beating him with it as an accomplice tore a £60,000 Ferrari watch from his arm.

Then a third rider climbed off his black scooter and lunged toward him with a claw hammer as a fourth sped into the driveway on a white bike and chased him out onto the street.

Cars streamed down the busy road just yards away as the first robber forced him to pull up his t-shirt, ripped a gold chain from his chest and removed a wedding ring from his finger.

Shaken, he stumbled back inside the house and closed the security gate as the men jumped on their bikes and calmly made their getaway. It was all over in 90 seconds.

The victim, a successful businessman who collects rare watches as a hobby, told the Standard he believed he had been targeted because he parks an expensive sports car in the driveway of his £2 million home.

He said he would be leaving the house built by his late father and moving to Italy in the wake of the attack on April 11, three weeks before Watford transfer Alexander Merkel’s house nearby was raided by four moped-driving robbers who tried to batter down his front door.

The German, 22, was renting the property while on loan to Championship side Watford from Italian club Udinese.

The man said: “I’m frightened for my life. I have no doubt this is the same gang who did the footballer’s house – it’s just a few minutes away.”

He added: “They were wrestling me and one was shouting ‘get his watch’. I was shouting at them ‘take what you want’. Another man lunged at me with a hammer but his friend stopped him.

“They forced me down into my driveway and took my rings. Then one of them ripped a chain from my neck. It was all over in 90 seconds. I was left traumatised. I was so shaken up I couldn’t speak. I was too scared to leave my house for days.”

He said: “I feel terrible, I’m not in control of my life. I’m wearing a panic alarm strapped to my body. London is not safe.”

Similar “moped gang” raids have forced residents in Hampstead Garden Suburb to fit metal bars on to windows and reinforce front doors.