Secret talks to move production of the soap from Elstree Studios to Stratford recently fell through, prompting accusations of snobbery from London Mayor Boris Johnson.
"There was the chance for the BBC to show genuine commitment to the East End - an area it has harvested for audiences for decades," Johnson said earlier this week.
"I'm astonished that the boss class don't see the obvious advantages of rooting a popular drama in an area it claims to portray."
However, a BBC insider has told The Guardian that the Stratford move was vetoed due to a number of complications, such as a 23ft privacy wall around the EastEnders set interfering with sight lines.
The source added that 30% of filming time would have been lost by 2015 had they made the move, due to air traffic around the Olympic park. The site also costs considerably more to film on than Elstree, where the BBC is the freeholder.
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