I doubt that it's really possible to intentionally develop people's visions of a traditional neighborhood. The reason people got to know each other is because they've been living together for a long time, not because of the swing sets. When a new neighbor moved in, there was a chance to incorporate them into the group. If there's nothing but new neighbors, who's going to be incorporated into what?

When you build a new development, regardless of your plan to put a butcher shop below someone's apartment, you won't have the sense of community that is needed in order to, ironically, create a sense of community. People will live in the town and drive to work miles away. People will still go to the full supermarket to buy food, probably on the way home from work. And if they weren't inclined to interact with their neighbors before, there's no reason they're going to do so now. A pre-existing community might draw them in, but who's going to bother to build one from scratch?

This is not the way you'll recreate the traditional town.

I think they just develop, I don't think you can force them. I'm not against being proven wrong, though.