My father was a general contractor, I was raised in the field, and built houses from 12 to 21.
I have a very low opinion of modern building techniques, and have for years been a fan of strawbale houses, which are cheap, easy to build, and solid.
It is even possible to build a good cardboard house, although I would only do it in the Southwest.
I'd put it up, the adobe the inside and outside with lime plaster. Occasionally patch it, and it'd last a hundred years.
Imagine the ease of it. Anyone could put up a cardboard house, and plastering is easy, too.
Of course, it could only be one story.