Try doing that with Legos.

Build all the plumbing into those walls.

Build all the wiring into those walls.

Build all the windows and doors and other openings into those walls.

Then try to put those walls together in a way that connects all the plumbing and all the wiring.

Now, let's look at the real world, at least here in the US.

Yes, there is a national electrical code that covers many parts that aspect, but lots of other codes vary on a city by city or even neighborhood by neighborhood basis. And your HOA can have some of their own codes that you're also required to honor.

How can you have a single central location that can build all those prefab walls according to all those different codes, and have them all pre-approved?