[Clay Moore]

I like the idea but how are they doing plumbing and electrical?

[oldasrocks]

Insulation?

I have made plans, which I will never be able to afford, of a poured concrete home with walls poured on both sides of a 4 inch foam. Fireproof on both sides. Using waterproof concrete of course. Conduit for electrical lines and water lines preinstalled in the walls and floor.

[CurlyDave]

I like the idea but how are they doing plumbing and electrical?

The other question to ask is what happens in a few years when someone invents a new kind of wire that you just have to have in your house? Or when you want to add an electrical outlet somewhere?

For instance: we ran ethernet wires for a security camera system, and to extend WiFi. What about cable TV?

When we built our house I put electrical outlets in every closet. Why? Because I know in my heart that someday someone will invent a gadget that goes in your closet and needs to be plugged in.