"It's a home where your wall are made out of concrete instead of wood that's it," said Zachary Manngeimer, CEO of Alquist, a 3D printing construction firm from Iowa City.

Printing walls out of concrete instead of stick building with lumber is a relief for homebuilders and homeowners. This year alone, a new single-family home cost had risen at least $36,000 because of soaring lumber prices. The good news today is lumber prices are declining but remain well above pre-COVID levels. 

"It's mixed in a mixing bowl and from there it goes through a tube into a printer head and that printer head is programmed to go around and print the wall system," said Chris Thompson, Director of Virginia Housing.