Piers Taylor and Caroline Quentin head to Japan, where they discover four extraordinary homes, built with great craftsmanship, combining high tech and a deep respect for tradition. Properties include the 'Glass House for a Diver' on the coast at Etajima, an all-glass building inspired by the chambers of an ants' nest, with rough concrete blocks chosen to surround the delicate home.

• Piers Taylor

• Caroline Quentin
• Piers Taylor