The street originally continued farther east to join Russell Square. It was joined on the north side by
Torrington Street and Keppel Mews North, and on the south side by Russell Mews and the entrance to Keppel Mews South. It contained a chapel for
Anabaptists.
British Museum Avenue was created in the early twentieth century, dividing the street, and replacing Torrington Street, Russell Mews and Keppel Mews South. British Museum Avenue was itself built over in the early 1930s when Senate House and other
University of London buildings were constructed on the former eastern end of Keppel Street. ==Buildings==