Not satisfied with its recent feat of 3D-printing 10 small houses in a day, Chinese construction firm WinSun Decoration Design Engineering has just topped itself by 3D-printing a five-story apartment building and a 11,840-square-foot Neoclassical mansion. Just like the batch of single-story buildings unveiled last year, these new structures are also made of recycled construction waste, assembled by one massive 3D printer.
As WinSun CEO Ma Yi He explained in a press conference earlier this month, this technology can save between 30 and 60 percent of building materials, shorten production times by 50 to 70 percent, and cut down labor costs by 50 to 80 percent. And it appears there’s already a lot of interest. CityLab reports that the Egyptian government has ordered 20,000 of WinSun’s single-story houses and a Taiwanese real estate has pre-ordered ten of these newly unveiled mansions.
This is pretty incredible stuff (that’s high-level technology speak). 3-D printing has gone from an interesting curiosity to “Whoa, the future just got here!” in a few short years. Those cost reduction numbers are so staggering they could make housing here in Southern California affordable.
Until Jerry Brown taxes 3-D printers to pay for a bullet train, of course. 
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