George Clarke's Amazing Spaces: Signal Box, Glass House and Campervan

In Cumbria, the architect meets Harry, who wants to take a derelict Victorian railway signal box and turn it into a garden summerhouse for his home, while in Derby, 22-year-old wood carver Sophie hopes to transform a campervan into a mobile home and showroom to use to sell her wares at festivals. On his Italian road trip, George discovers a spectacular house made almost entirely out of glass near Lake Lugano, and at the wilderness retreat, he and Will struggle to get the walls right