The reason why the process is so incredibly fast is because the excavation and laying of the foundation on-site can be completed at the same time as the construction of the modules. It would also require nearly 70 percent less on-site, labor according to The B1M.

In fact, most of the segments of Marriott’s planned hotel are being built in Poland and then shipped across the Atlantic. The rooms will be ready made according to Marriott, including bedding and even toiletries.

“We wanted to demonstrate that modular building can do more than just harness the efficiencies of the factory,” Danny Forster, owner of the firm that designed the tower, said in an April press release. “It can produce a graceful and iconic tower. And yes, it can do so at the rate of an entire floor a day.”