I can't imagine your model working for any town/city except the very smallest ones or those inhabited by rich people only: to have an independent building,where

I can't imagine your model working for any town/city except the very smallest ones or those inhabited by rich people only: to have an independent building,where the community could do whatever they think is right for them requires capital and some sort of management. So if it's a small village in the middle of nowhere, building something is probably realistic,but what about a few thousand people town? You'd need a piece of land, substantial amount to build it or even to rent it. And how a larger community would finance it? Joe may want to contribute but Mary won't and so on. Once you have the place,who runs it. Self elected local activist or elected person? How would they decide that events they plan to do fit well within the community, especially if it's more diverse? Whether it's national or local, the main problems around its use would remain the same.