Marylebone Lane is nowadays a side street which leads from Oxford Street to Marylebone High Street, and a popular short cut for traffic wishing to filter through to Wigmore Street, which in turn runs parallel with Oxford Street.
Inset in this modern piece of wall at the corner of Wigmore Street and Marylebone Lane, is this ancient plaque that goes unnoticed by the vast majority of passers by. This very spot was once the main source of the water supply to the City of London. The River Tyburn, with conduit head chiefly alongside of present day Oxford Street, where it would then flow down beneath Brooke Street. This plaque reminds us where the water was once piped to the City of London, close by the Lord Mayor's old Banqueting House, which once stood in fields now occupied by nearby Stratford Place. Alongside this field was a small lane leading to Marylebone - the present day 'Marylebone Lane' - where on this corner stood the chief conduit, now marked by this commemorative stone inlaid into the wall and dated 1776 with its City of London claim.