Archie Bunker's house in Queens is still standing, flagpole and all, reports Scouting New York, the terrific blog about movie and TV locations in NYC. At least it's the Bunkers' residence as seen in the opening credits of All in the Family, which does not match up at all with the Hollywood set on which the action took place. The interior set has the front door in the right corner rather than between two sets of windows, and in several episodes we glimpse a front porch that doesn't exist at the "real" house. But it seems right for a representation of the Bunkers' neighborhood of Astoria.
Blog author "Scout" notes that there is a cemetery across from the house in the All in the Family credits, which seems appropriate for the stuck-in-the-past Archie (or, as Archie would have it, the "dead from the neck up" son-in-law he calls Meathead). But I don't think the show ever mentioned that. It's really too on-the-nose.