Grand Designs: 17x1

Dursley: Gloucestershire Treehouse

Kevin McCloud follows plumber Jon Martin and ceramicist Noreen Jaafar as they transform a neglected half-acre site in Gloucestershire. However, they are unable to cut down the 27 protected trees on the plot, so their solution is to build a big, modern treehouse with stilts screwed into the earth and balconies that will have views for miles.