Building an Earthbag dome is nothing new. This type of raising structures have been around for a while. The popularity of such a multipurpose structures increases due to the low cost it involves.
The dome you see in the pictures had material costs totaling around $300! The finished building can be used for different purposes, such as shed, pantry or rootcellar. In some cases, you may even use it as a shelter for storms. In general, due to its size, likely you don’t need a building permit to raise a similar dome.
The difference between a common structure and an earthbag dome is that each row of earth bags is inset slightly from the one positioned below it. The amount of work isn’t light. But if you are thinking to build such a dome on your property, you can refer to the step-by-step tutorial in details here. Begin with clearing and leveling the building site and then follow the instructions to complete the whole dome. Have fun!