Perfect for the Mississippi Delta.

I didn't see any mention of the house being leak-proof for that flood, or how far down the steel supports go to prevent the ground underneath it destabilising, but otherwise? Nifty.

Seems cool! I have seen som similar things done by stacking 5 shipping containers and then mod-ing them as needed for windows and such.

ah yes to be young and have a BB gun, the top windows look like they would be fun to replace

Low impact living is an important idea; however, whenever I see a multilevel design like this I cannot help but think of the sizable portion of our population who could not possibly live in such a building. They cannot climb. Any design for habitation which is not accessible to all is a failure.

Here our big concern is hurricane winds. To really be safe a structure needs to withstand 200mph winds as well as debri flying in those winds. The next issue is heat. Can this unit be air conditioned in a hot, humid climate cheaply? We often see steel I-beans that are free standing twisted and bent to the ground by winds here.

So many thoughtful and practical ideas being offered these days! Exciting stuff!

How do they control over heating? With the sun hitting that thick steel on a hot day i could see those walls getting pretty warm.

But one off fancy.

Many of the concerns in the comments don't apply in this location. Surely a design of this type can be tweaked for different locations. Neat design but stairs are often a handicap when old.