Board Thread:Inclusion debates/@comment-186.3.211.142-20150428134551/@comment-5918438-20160110053144

For the record, the same staircase was later seen this past series in The Zygon Invasion. It's her flat.

And I have to say it certainly at least looks a lot like the Powell Estate staircase (I'd go as far as to say they're probably both shot in the same place)—but there is no in-universe evidence for those two buildings being the same in the DWU. Like Tybort said, at most, it's shared location shooting.