麻豆社

In the last round of this heat, two designers are left battling it out for just one sought-after place in the quarter-final. They must earn their place by transforming two tiny bedrooms in medieval timber-framed houses in Sussex - still with a budget of 拢1,000, a small team to help them and just three days to complete their projects. However, working in such small rooms brings a myriad of problems for both designers.

The briefs are poles apart. One designer must create a calm and serene Scandinavian-inspired scheme, complete with raised, built-in bed, but with a client who loves authenticity, and the judges worried about using MDF for the bed, the whole look is under intense scrutiny. Meanwhile, the other designer is working for a seven-year-old boy, delivering a Batman-inspired fantasy den - complete with bat motif lighting, secret compartment and dark grey walls... if the client's mum agrees.

Presenter and architectural historian Tom Dyckhoff looks back at how these timber-framed houses were originally put together, while the judges must make the huge decision about which designer shows the skill and talent to become a quarter-finalist and who will leave the competition.