The Shantikuthi earthbag spiral house, Nagano, Japan.


This is the Shantikuthi earthbag spiral house, a garden playroom at the Peace Permaculture Garden in Nagano, Japan. It was built by Michi-kun, a permaculturist and carpenter with twenty volunteers.

The roof is arranged in a spiral where different plants are grown for visitors to harvest seeds to take to their own gardens. The walls sit on a 60cm deep rubble trench foundation. Inside the house is a rocket stove. You can see the construction steps in the video (above right).