The Czech Republic’s first 3D-printed house will go up next month, to demonstrate the speed and effectiveness of a construction technique that is claimed to be seven times faster and half the cost of building a brick house.

th three rooms and a floor area of 43 square meters (463 sq ft), the Prvok od Burinky home will be built layer-by-layer using a robot arm repurposed from the automotive industry. This arm will deposit a specially formulated concrete, with nano-polypropylene fibers, plasticizers and setting accelerators mixed in, at a rate of 15 cm (5.9 in) per second. Walls will be printed with inner and outer layers, and the middle will be presumably be filled with insulating material.

Within 24 hours, this concrete will set to standard house foundation hardness, and after 28 days the company says it will complete its hardening to the point where it’s as strong as a bridge. The structure and materials are designed to hold up for 100 years.This demonstration home will be built on a floating pontoon, with a wooden deck around it. Moving inside, it’s a fairly small living space for two, with a bedroom, living room/kitchen and a bathroom.