Kamp C just became the first in the world to 3D print a two-story house in one piece, using the largest 3D printer in Europe.

The house in Westerlo, Belgium, is a demo for this style of 3D printing, showing off different styles. It’s also a way to measure how the home, which was built using greener practices than typical constructions, holds up over time.

Kamp C’s 3D printed house is part of the European C3PO project, supported by the European Regional Development Fund. The project brings together scientists and business people to advance 3D printing in Flanders.

Kamp C used a 3D printer to print a two story, 968 square foot house.

The massive 3D printer is the biggest in all of Europe.

The house is two floors, a first and a breakthrough in the world of 3D printed construction.

“The homes that have already been printed worldwide have only one floor and are often in parts factory printed and assembled on site. We have printed the entire building envelope as a whole on the site,” project manager Emiel Ascione said.

As Ascione explained, 3D printed homes do already exist, but the term usually describes individual pieces that are printed and later fitted together.

The house is three times stronger than a regular build, according to Kamp C.

As the demo house, it was printed over three weeks, but Kamp C predicted that in the future houses could be printed in as little as two days.

It was printed with different types of walls to show the possibilities of 3D printing.

Some walls are curved, there’s and overhang, and other types are around the house.

Kamp C is adding on to the house to show how it would actually be livable as a low energy home.

Builders are adding heating, a green roof, and solar panels.

Experts will continue to watch the home to see how it holds up over time and use those insights on future 3D printing projects.