Each cost less than $5,000.
Recently in Shanghai, a Chinese company 3D-printed 10 small buildings in about a day.
Walls are made of layers of a concrete aggregate that includes recycled construction waste. Each house, assembled from the printed walls, measures 200 square meters and costs about $4,800.
Granted, these buildings are not the most sexy. You could even argue they're not real 3D-printed buildings since assembly is required. (Rest assured a team from Amsterdam is currently at work on a fully 3D printed canal house). But according to The Architect’s Newspaper, the company hopes the technology will provide an “affordable and dignified" housing option for the impoverished.
Hear more about the construction process in this video.