Sharon Osbourne has spent the past week cooped up in a house surrounded by TV cameras.

Now she’s leaving Celebrity Big Brother for her nearby home – where she will once again be under the gaze of their lenses.

She and husband Ozzy have signed a deal with the BBC to make a ten-part reality show about their return to the UK after more than 25 years in California.

And – more than 18 months after that project was first announced – they are finally ready to make their move, I understand.

They bought Welders House near Beaconsfield, Bucks, in 1993, using it as a base whenever they are in Britain.

But recently Sharon has transformed the 120-year-old, Grade II listed building, just 20 miles from the Big Brother house, ready for their permanent move.

Sharon and her husband Ozzy have signed a deal with the BBC to make a ten-part reality show about their return to the UK after more than 25 years in California

Sharon and her husband Ozzy have signed a deal with the BBC to make a ten-part reality show about their return to the UK after more than 25 years in California

Welders House near Beaconsfield, Buckinghamshire, is a Grade II listed building that the couple purchased in 1993

Welders House near Beaconsfield, Buckinghamshire, is a Grade II listed building that the couple purchased in 1993

As we revealed last year, the house has been adapted to help Ozzy live with his Parkinson’s disease, including a therapy room and nurses’ quarters for a live-in carer.

A ‘renovation wing’ includes a gym, a pool and an orangery garden room as well as ‘discreet grab rails’ for the former Black Sabbath frontman.

They also have planning permission for a new pond, while fencing around the property has been raised to almost 10ft high to preserve their privacy – which might seem ironic given the forthcoming fly-on-the-wall series, to be called Home To Roost.

The couple are no strangers to letting cameras into their home, with their MTV series The Osbournes, which started in 2002, being one of the first of its kind.

Sharon agreed a deal with ITV bosses that she would not stay in the Big Brother for the full 19 days – yet still gets paid £100,000 a day –so she can look after Ozzy.

She said: ‘I don’t want to stay away from Ozzy for too long. We’re so close as a family. I don’t think I have ever gone a week without talking to any of them, ever. Through fights, feuds, everything.’