George Clarke's Amazing Spaces: Double Decker & Super Den

George meets communications manager Ellie, who has realised her dream of a life on the road by buying a 1970s double-decker bus and turning it into a luxury mobile home. He also follows the creation of a multi-purpose super den in Suffolk, complete with a floor that turns into a roof terrace, visits a shrimp-shaped concrete structure in Japan, and heads to Kew Gardens in search of inspiration for his treehouse project