using massive 3D printers; in Shanghai, it’s 490 feet long, 33 feet wide, and 20 feet deep. Rather than expensive plastic, though, the Chinese company WinSun Decoration Design Engineering Co is printing with a concrete aggregate "made in part from recycled construction waste, industrial waste, and tailings," according to the Architect’s Newspaper. Each of these homes costs less than $5,000.

via How a Chinese Company 3D-Printed Ten Houses In a Single Day.