. >> jason ballard is the c.e.o.icon, a company in austin, texas, using massive 3-d printers to redesign home building. and so is the future we're going to be out some night seeing hoses? >> this is a complete transformation in the way that we approach sheltering ourselves, and the way we approach building. >> reporter: this newly 5-ton machine follows a computerized blueprint and can build the entire wall system of a home with a concrete mixture in less than a week. it is used for the foundation, roof and plumbing. printing the walls is several times faster than wood framing, and icon says the concrete structures are highly energy efficient and can better withstand natural disasters. >>> so this house has curves. >> that's right. >> reporter: and you don't have to live in a boring box. these wavy 3-d printed walls will eventually become this high-design home. 3-d printed homes are rare, but they're starting to pop up all over the world. these domes in italy were printed out of dirt in 200 hours. and another company