May 26, 2021 The first house made of 3D printed concrete in the Netherlands, in 2021 A 3D-printing business in the US says it can construct a home in half the time required to build a conventional equivalent – incurring only 10% of the labour cost and 10% of the waste. One of its rivals says it can print a house out for a shade over $10,000 (£7,100). It sounds rather too good to be true, doesn’t it? One person who should know the answer is Henrik Lund-Nielsen. He’s the founder and general manager of Copenhagen-based firm Cobod, one of the world’s best-known house printers. His verdict? “The numbers you see are usually bullshit.”