Background information:
Prefabricated; we know it since the '70s. The idea is that parts of homes are already made as complete as possible in the factory where weather conditions do not affect the construction. This is quick and saves space on the site. Especially useful on small sites which are often downright cramped in the inner city areas.
The concrete skeletons of homes lend themselves well for the precast system. Often walls and floors already equipped with plumbing and electrical pipes before they leave the factory. These parts arrive on trucks and are then easily assembled after a crane has put down everything in the right place.
Architectural details:
Our model is the prefab concrete skeleton of a "semi-detached" or possibly for a row of houses. Gaps for the stairs, roof beams, sewer and meter are already present. As well as the mounting boxes for electricity.
In modern prefab systems attention is also paid to the appearance of the houses. Because since the '70s, it has become clear that we as a society do not really want homes, those with thousands of identical copies form entire neighborhoods of cities.