Building a house by hand can be both time-consuming and costly — so some homebuilders are now automating part of the construction process.

The homebuilding startup ICON uses a 3D-printing robot that can make parts for houses. The machine can print the walls, roof, and floor of a 650-square-foot model in as little as 12 hours. A worker then adds the windows, doors, plumbing, and electrical systems.

As The Verge notes, ICON debuted a prototype of the house at this year's SXSW festival in Austin, Texas. Partnering with the international nonprofit New Story, the company plans to build dozens more for low-income communities in El Salvador by the end of 2019.

Check out the home below.