Sarah visits a tiny two-bed house in Horsham, West Sussex, where the owners have run out of space, and a massive build in the affluent London borough of Wandsworth. In Horsham, West Sussex, Jason, Sarah and their two-year-old son Harley need more room. Plasterer Jason pulls in favours from mates in the trade to help with their extension project, but on Day1 they hit upon a real stink - a sewage pipe. In the affluent London borough of Wandsworth, south London, Charlie, Claire and baby Tommy live in a pokey two-bed Victorian terrace. With Charlie busy at work, Claire takes charge of their massive build, which they plan to decorate in a country-house style.