https://www.youtube.com/watch?v=ch8Dqdr-U8g
I saw a CGI animation on Netflix of this on a large scale ''pooping out'' houses formed a giant 3D printer. The printer looked like a crane in a shipyard moving shipping containers.
I was a licensed builder for 12 years and the biggest problem I see is with the structures or components is one of being compliant with the current building codes.
You could "print out" a roughed out structure with chases for electrical, plumbing and HVAC. Then use trade labor to do all of the finish work. Given the extruded polymers will have have equivalent strength of wood and steel components in use today, the printed structure would not rot or rust.
The big problem is toxicity, especially in a fire -- the structure might melt, trapping the inhabitants like ants in amber ...
Be interesting to see if they will get a final Certificate of Occupancy from the Amsterdam city Building and Safety Department.
https://www.youtube.com/watch?v=TAoW1iA385w