After making over large shops last week, the five remaining designers now work on their smallest spaces to date. They head to Eastbourne in Sussex to transform five 1930s beachside chalets. Working on their own, each designer is assigned a brief tailored to a different chalet tenant. From a family bolthole to a group of friends called The Gin Club, and even a chalet rented by the local A&E department for team building, each space has a different clientele and very different requirements.The guest judge alongside Michelle is interior design royalty Laurence Llewelyn-Bowen, and in typically lyrical fashion, he uncovers elements he both loves and loathes. Michelle hopes to find form and function in perfect harmony, but as ever, some designs fall short of her high standards. The designers head back to Brighton to hear their fate from Alan. One designer will be walking away the winner. For the remaining four, it's a stroll to Michelle's office, where she will decide which one of them will be going home.