
Now that’s sustainable! It’s an earthen home in Washington’s Independence Valley.
“The funky, individualistic two-story home was built by Gregory Crawford, who works at nearby Rising River Farm – and travels during the farm’s off season (having no mortgage helps, no doubt). He gained permission to build there by asking the landowner…”
Read more at Lloyd’s Blog: Hand-built Earthen House in Washington Woods.

Here’s an unusual approach that combines a couple of building techniques.
If you like the idea of building with rammed earth, Michael Thompson teaches a two day course in the UK. Below are the summer course dates.
The folks at 
I always learn new stuff while reading
I’m starting to think that building with earth makes more sense than any other building method. I must admit I’m terribly biased because my real professional training and education is in the ceramic arts. The main disadvantage is that they are no portable like so many of the tiny houses I write about and explore through design.
One of my readers on Tiny House Design sent me this very nicely done adobe casita near Abiquiu, New Mexico. Three months out of the year Samuel Grey lives in this tiny house. In a few years this will be his full-time home.