A futuristic cross between a space laboratory and an airport terminal, this is the dream home of one of Britain's leading industrialists. Sir David McMurtry, who was knighted in 2001 for design and innovation, has spent 30million on Swinhay House, shaping the building and gardens to his own vision of sustainability. The site, in the village of Swinhay, near Wotton-under-Edge, Gloucestershire, is an astonishing mix of angular, high-tech insulated metal roofing, curving bonded glass and lawned mounds that sweep up towards a series of circular stone walls. The 23,250sq ft building and its 60 acres of manicured parkland and gardens dominate an estate covering more than 230 acres of woodland, fields and orchards. Its principal architect was David Austin, who has won awards for his environmentally friendly approach to construction. A striking solar-insulated glass atrium covers the mansion's indoor recreation area and 80ft pool and leads the eye to a bow-shaped gallery capped by a glass turret with panoramic views of the surrounding countryside. The house is spread across 11 levels that incorporate several self-contained apartments, a Jacuzzi and sauna, a games and TV room, two squash courts and a bowling alley. The garage is big enough for eight vehicles, and around one of the bedroom wings flows a water canal that cascades into a lagoon. Architect Andy Rathbone designed the parkland and gardens, the most striking feature of which is a curving lake, which has extraordinary bird sculptures and serves as an eco-friendly heat-exchanging system to control the temperature in the house. Sir David, co-founder of the precision instrument company Renishaw and recently listed as being worth 225million, began work on the project in 2001. As part of an ongoing development of a former dairy farm, he also commissioned a smaller property on the site which reflects the futuristic style of Swinhay House's features and materials. - Daily Mail