Including plumbing, flooring, electricity, hooking up utilities etc. ? Please cite your sources because extraordinary claims require extraordinary evidence.

Yes, I know about the skyscraper, I meant the 'build home in a single day' part.

Keep in mind they had several small armies working on it at the same time. They could throw bodies at the work and get it done quickly. The real challenge would be in coordinating all of that.

iirc the designer of that skyscraper admitted that the plumbing was not ideal.