I am interested in combining homes of super adobe, bags, earth and papercrete. What kind of costs for about 800 sq ft?
Earthbag building can be one of the least expensive ways to go, since the materials themselves are fairly inexpensive. It is all of the other things that most structures need that add up to more money, so the walls are just part of the cost. I built my earthbag/papercrete house for $16/sf, about ten years ago…but I did almost all of the work myself, and I am very good at scrounging for supplies…and it took me three years to do so.