QUOTE(mALX @ Oct 24 2018, 08:51 AM)
Seward Square? (for the white picket fence; although I don't remember seeing the high power lines through there).
That is much warmer, but not quite there.
QUOTE(Lopov @ Oct 24 2018, 08:53 AM)
East of Fairfax? Interesting. It can't be inside the D.C. ruins because such houses aren't present inside the D.C. ruins IIRC.
Is this a marked location?
It isn't right at the marked location if you were to fast travel there, but it would still be considered part of it. But as mALX's guess and my response indicates, it is actually in the D.C. ruins somewhere. I was actually a bit surprised to find a building like it myself in that area.