The brokers at U.K. Sotheby's International Realty are back to secure more multimillion-pound sales; Lee has a terraced home to sell that overlooks Regents Park lake; Guy is invited to sell a rather unusual houseboat.

Constance is on a mission to get the listing for celebrity singer Laura Comfort's 12.5 million pound home; Guy values a quaint Tudor cottage in Henley-on-Thames; Diana takes on a high-end London rental.

In Oxfordshire, Guy hopes to bring a 14-bedroom, five-acre, 6.5 million pound manor house onto his books; Portsmouth beckons John to an unusual seaside property; Kenrick heads to Camden to try and secure the listing of a modern apartment.

John has a family home to sell in the New Forest; Guy and Aoife work on one of their smallest properties, an industrial-style one-bedroom pied-à-terre in Pimlico; James visits a new development of 55 apartments brimming with musical history.

Diana vies for the listing of a 30 million pound Mayfair home; Christine enlists the help of fellow brokers Tessa and Amy to help close a lucrative deal for a Georgian Grade I listed townhouse in Bath and a modern country home just outside Henley.

In Surrey, Amy's on the hunt for a buyer for a 1930s architectural home that has a professional recording studio, that's hosted the likes of Pink Floyd and Paul Weller; Natalie looks to sell a converted factory in London.