While the US and Canada have seen several 3D printed buildings in recent years, until now all of these have been single-story buildings. Now Canadian 3D construction printing company, nidus3D, is proving, that there is much more to 3D construction printing, than just smaller one-story houses. The completion of the printing of this 2-story building in Ontario, marks the building as the first multi-story 3D printed building in North America. Nidus3D used the BOD2 printer from COBOD, the world’s leading company in 3D construction printing solutions, whose technology has already been proved in several countries and used to 3D print the first 2- and 3-story buildings in Europe. As another advantage of the COBOD 3D construction printer, the BOD2 can print with real concrete with a particle size up 10mm and 99% based on locally found raw materials. COBOD developed this low cost solution, which is called D.Fab in cooperation with the cement giant Cemex. The 2-story house is the second structure nidus3D built, the first being earlier this summer 2022. The building will have a studio on the ground floor and a residence above, and the area of the building will be 2,300 square feet of mixed-use space. One of the new innovative methods nidus3D developed in the project was a 3D printed horizontal beam printed on site and lifted into place by a crane. With the COBOD International 3D construction printing technology, nidus3D has set out to address the current housing gap in Canada. COBOD and nidus3D both believe this new way of building will be a game changer for the housing crisis.