I have no problem with locating a shul in a residential neighborhood. However, this seems to be a very different issue. As you express it, the problem is that children, as they become adults and establish their own households, want to live in the same community within proximity of their parents. I do not make any claim to be an expert on Orthodox Judeism, and especially not on Hassids, but I don't think that there is any requirement that adult children be able to visit their parents on the Sabbath (walking, of course) or that they attend the same synagogue.    It would be nice, of course, but they may have to settle for living elsewhere, bringing the grandchildren over on Sunday, and waiting for a house to become available in their neighborhood of choice.