Wales introduced the One Planet scheme in 2011 to try and make this easier [0] (it's debatable whether it is, in-fact easier).
The Lammas eco-village [1] in Wales is very similar to the one in the OP, and is one of the driving forces for this kind of movement (and the One Planet scheme).
Thanks! I considered moving to an eco-village in Ireland (Cloughjordan) but they told me it would be at least a year before getting planning permission to build anything.