Kirstie Allsopp and Phil Spencer look back at favourite editions featuring homes full of collections and clutter. In Somersham, Kris and Emily have a £50,000 budget for a first-floor extension to add a fourth bedroom, which Kris thinks will sway Emily back to loving it. But Kirstie is convinced they already have the space they need and embarks on her biggest-ever declutter. They also travel to the Edinburgh suburb of Portobello, where Gary and Bill are at loggerheads over their 19th-century home which is full of Bill's music memorabilia.

Kirstie Allsopp and Phil Spencer look back at two of their biggest builds. In Huddersfield, Paul and Dawn Welham-Campbell's higgledy-piggledy layout simply does not work for them any more. Kirstie gets the sledgehammer out, while Phil searches for properties to rival Paul and Dawn's own. In Woodford, Keeley and Terrence Stamp are also at loggerheads. Keeley's fed up that their family of five is bursting out of their three bedrooms and one bathroom, and that their open plan lounge is basically one big noisy thoroughfare. Which of the property duo will come up with the best solution to their problems?