Above the front shops it has an additional 6 floors which includes a Malmaison hotel and residential apartments.
In 2003, as BBC Pacific Quay, The Mailbox and BBC White City were being redeveloped it was touted the New Broadcasting House site could be redeveloped but this idea was eventually shelved to create a new purpose-built television studios.
She died on the evening of 31 October 2005, at the Mailbox studios of BBC Birmingham, shortly after completing work on a recording session for The Archers.
In the fourth segment, George Washington gets a letter in the mailbox, opens it and exclaims: "Gadzooks! I've been drafted!"