I've posted about 3D printed homes before. The technology seems to be progressing nicely. There's even a new patent for a 3D printing tech that can be hoisted to great height on a crane. 

 

 

"(ORNL) is currently developing a concrete deposition system for infrastructure-scale printed objects. This system, called SkyBAAM, uses a cable driven motion platform to manipulate the print head. This work focuses on the general aspects of the system architecture, including arrangement of the cable driven platform, general high-level control methodology, and system accuracy, along with concrete deposition methods. Results and demonstration prints will be shown."

 

https://www.ornl.gov/publication/skybaam-large-scale-fieldable-deposition-platform-system-architecture