it's a thought ... dirt cheap....earthbag building is also known as superadobe, flexible-form rammed earth or sandbag construction. Whatever you call it, it is earthquake resistant, flood resistant, hurricane resistant, fire resistant and termite proof ... perhaps a little paint ... perhaps a good technique for a chicken coop ...
Why Reusable Bags Are Better for You AND The World
Here's another inspiring earthbag construction for fans of natural homes out there! The Shantikuthi Earthbag Spiral House is called such because its walls were built in a spiral pattern. Its roof also has a spiral garden where visitors can harvest seeds to bring home and plant in their own yard. Learn more about it and view the slideshow of the building process on our site! :)
How To Build an Earthbag Roundhouse - Sandbags have long been used, and still are to this day for creating strong, protective barriers, or for flood control. The same reasons that make them useful for these applications carry over to creating housing. Since the walls are so substantial, they resist all kinds of severe weather even bullets and also stand up to natural calamities such as earthquakes and floods.