It's encouraging to see such enthusiasm for sports at a grass roots level. In our case, it has always been intended as an exclusive training facility designed, financed and maintained by a small group. I don't know for sure, but when you start to involve the 'community' at large, you start to open yourself up to all manner of answerability. For us, that isn't an attractive option and paying £12.00 each a month inclusive of all rates, it needn't be an issue.
As dobbin says, hard work in searching for a premises is sure to pay dividends( I treated the hunt for a venue as a full time job when I was out of work for a good while). I don't know what your local situation is but there may be sympathetic people sub-letting council premises who in turn, you may be able to mega sublet off.