There is a fun and free online tool for calculating the materials needed for building earthbag domes. I think that it errors on the conservative side, but this is probably a good thing. If you go to www.terra-form.org you can interact with the calculator.
This blog post describes super low cost earthbag building methods that do not have to meet code. These dirt cheap building methods are primarily for those in mild climates (minimal freezing) and low or non-code areas.
Here’s the rainwater cistern from dream to (almost) done! Built with earthbags and a custom liner.
“Transition Asheville Trip to an off grid Earthbag home of Morgan Caraway & Mary Jane.
I came across this project proposal for Nepal. Very little information is available, although it looks very interesting. I encourage the designer to build a prototype and report the results.
“Earthbag shelter Nepal: Sharing platform for ideas and plans relating to construction of earthbag shelters in Nepal”
“Tucked in to 130 acres of pristine rainforest in Cayo in Western Belize, our eco-community is located on the shores of one of Belize’s most spectacular waterways, “The Macal”, with its source high in the Mayan Mountains.”