I found a very good greenhouse design by Bill Mollison (co-developer of Permaculture) in this video called Intro to Permaculture 12 – The Industrial Egg vs The Permaculture Egg. This video is a part of Midwest Permaculture’s Free Internet Webinar Series. It is one of eighteen segments from the first webinar of the Foundations of Permaculture Webinar Series. (Skip ahead to 1:12 if you know the background of industrial chicken farming and want to go right to the greenhouse info.)
Is anyone interested in building something like this with earthbags? Do you want to help design an open source plan? Ideally, a few of us can work together on the design and then build one. The design part is easy. We mostly need someone who has the time and money to build a greenhouse/chicken coop fairly soon. Leave a comment below if you’re interested in working on this project.