Room 413
From Tardis Wiki, the free Doctor Who reference
Room 413 was located in the offices of MacDonald, O'Brien and Withers.
A space-time navigator was kept in room 413. The thief Darrakhaan broke into room 413 to steal the navigator but he was stopped by the Eighth Doctor, Charley Pollard and C'rizz. (PROSE: Round Trip: After Midnight)