What you have written about your suppositions on EP appear very negative to me, jess, as if the very fact that he is a Tory politician means he can do nothing with good or useful or just straightforward motives. Perhaps you are wise.
I hope the scheme works. Perhaps it is working already on a small scale. I just think it seems like a good community spirited idea, a bit like car-sharing, and I don't see why LAs need to be involved other than by a few bye-laws which may, in any case, already exist. e.g. I'm sure you need planning permission to tarmac over your front garden nowadays. You certainly did in the district of Oxfordshire that we left in 2006 and that had been the case for some years already. (No, we didn't want to tarmac over ours, but we knew people who did and who weren't allowed to).