At my feet lies a world yet to be imagined

Walking or driving in my city, and suddenly discovering a street or neighbourhood that doesn't exist. There is a very specific neighbourhood that I imagine, between the old west end and downtown, with small narrow streets, lovely old houses, cul de sacs and crescents that lead me away from home. In my dreams, it is familiar but unfamiliar. I know people who live there, but they're distant acquaintances. The architecture is a little off.