SE15 7GO

SE15 7GO was the postcode of the Powell Estate. (TV: Army of Ghosts, PROSE: Meet Rose)

Behind the scenes
"SE15" is the postcode area of Peckham, one of the locations said to be the location of the Powell Estate, though this somewhat conflicts with the geography seen in several television stories, which should be Kennington. Either way, "7GO" is fictional.