Cliff Top Retreat and Garden Pavilion

The architect extraordinaire is back for another tour of offbeat small builds, from space-saving retreats to reconditioned vehicles, at home and abroad. He begins by meeting a father and son building an ambitious clifftop retreat and a young architect embarking on his first commission - a garden pavilion for his gran. Master craftsman Will Hardie sets out to transform the humble beach hut into the most unlikely of holiday getaways, and in Germany, George visits a modern house in a medieval town