This week, the designers arrive in Brighton and find out it's time to work solo.Michelle tells them to get into the spirit of the staycation, as they're off to north Wales to a glamping site. With a chance to showcase their individual abilities, they'll each have a shepherd's hut to transform into a boutique bolthole in the tranquil Welsh countryside.With only five designers remaining, competition is getting tough. Before they get going, Michelle gives each of them a bespoke brief and tells them their client is a brand new business, so they need to work their magic. They'll be designing their smallest spaces so far, so practicality is key, but they must also be sympathetic to their surroundings. With so little to choose between them, she tells them that she wants to see hands-on skills – as well as maximum creativity.The designers arrive on the Llyn Peninsula near the Welsh coast and are impressed with what they find at the site. The newly built huts are a blank canvas, with one designer worried that they might ruin what's already a lovely space. With briefs ranging from rustic chic to romantic, each designer takes a different approach to turning these tiny spaces into luxury living accommodation, with the challenge of an ensuite shower room and an outdoor space thrown in for good measure.As the challenge comes to an end, the storm clouds roll in, as do the judges, Michelle and the legendary Laurence Llewelyn-Bowen. Two huts strike them as pitched perfectly at the target market, but they are less sure about the other three, questioning whether the designers have taken the right approach for the rural surroundings.