You are viewing a single comment's thread from:
RE: Underground House and A Tree House ~ Drawing
When bitcoin reaches $500,000, a dollar won't be worth a dollar any more.
All of these are easy to build. An easy way to build underground dome buildings is with balloons and spraying them with lightweight concrete.
Or balloons and spray them with foam urethane, then cover that with concrete.
But it isn't the way I would build an underground house. You can see my old posts about earth tire greenhouse.