Britain's Most Expensive Houses

In the Vale of Glamorgan, agents Sorcha Rodbard-Hedderwick and Jemma Friday are marketing £2.2 million Llwynhelig House - a Grade II-listed manor featuring a log cabin and shepherd's hut. Broker Margaret Thompson is in Jersey to showcase £17 million Sunningdale Manor, which has undergone a multimillion-pound renovation. In London, agent Constance Cunningham presents three high-end apartments to Argentinian lawyer Ramiro, and in Cornwall, Ian Lillicrap returns to the charming village of Flushing, where he's been called to value a 16th-century house that he's sold twice before.

On north London's prestigious Billionaires' Row, Jeremy Fine is selling Fair Hill, a £20 million mansion steeped in royal history. Spanning 13,900 square feet, it boasts six reception rooms, eight bedrooms and a nightclub-style party room. He enlists international buying agent Nick Dawson to gauge interest from his billionaire clients. In Hertfordshire, Margaret Towney helps serial property flippers Mark and Linda turn a profit on Asterley House - previously lived in by Vinnie Jones - while simultaneously hunting for their next dream home. Could Cheryl Cole's former residence be the ideal solution?

Broker Josh Hamilton-Fletcher is searching for a new home for Rob, who wants to downsize from his £15 million beach house on exclusive Sandbanks. In Essex, Simon Pelling lists Churchfields, a £3 million home that's been on the market for six months, while Ed Casson is selling the grade II listed Old Rectory - a Victorian house which is also the ancestral home of George Washington.