This plan illustrates what I think is the simplest, easiest way to build an earthbag home: build in stages, one roundhouse at a time so you can pay with cash and move in right away. It’s far easier to start small and add on later than jump right into building a large home that could take months or even years. I’ve talked about this a lot on our blog, but this is my first plan designed specifically for building in stages. This is becoming one of my favorites. What do you think?
The Three Roundhouses design combines:
- Hobbit House (starter house in this design): 471 sq. ft. interior, optional 471 sq. ft. loft, one bedroom, one bath, Footprint: 27′-6″ diameter
- Roundhouse Studio (master bedroom in this design): 177 sq. ft. interior, fold-out bed, 1 bath, Footprint: 18′ diameter, plus buttress
- 33’ (10m) Roundhouse: 855 sq. ft. interior, 1 bedroom, 1 bath, Footprint: 36′ diameter
Total living space: 1,503 sq. ft. interior
Related:
The Most Bang for the Buck? Part 1
What’s the Easiest Shape to Build?


I think this is fast becoming a favorite design of mine.. I’ve looked through the majority of the designs listed on the site and this one is just catchy. The houses built prior to the final piece could be converted into studies. libraries, offices.. or just about anything someone might need – including a guest bedroom. Amazing set-up
Good point. There are lots of possibilities. You could even add additional units if you want.
A reader just suggested turning the walkways between roundhouses into greenhouses. Excellent idea!