I thought you folks might be interested in this website since you are trying to get local and state governments to approve of special land-use projects. What caught my eye with this website was the following statement: The “Lammas Project is a voluntary organization that has been working to promote low impact development for the last three years. It was involved in the development of a Low Impact planning policy in Pembrokeshire [Wales], the first county in the UK to introduce one.” http://www.simondale.net/house/lammas.htm
“This building is one part of a low-impact or permaculture approach to life. This sort of life is about living in harmony with both the natural world and ourselves, doing things simply and using appropriate levels of technology.” <http://www.simondale.net/house/index.htm>
Hope this is useful in some way.