Tyburn

The River Tyburn was a small stream that once flowed through central London. It rose near Fitzjohns Avenue in Hampstead and wound its way south for about eleven kilometres. The river split into several branches as it passed through Marylebone, Mayfair, St James’s and Green Park before reaching the Thames. The Tyburn’s name appears in charters from the 10th century, where it was called Merfleot or Teo-burna. The river once marked the western boundary of an estate and later gave its name to the Tyburn manor recorded in the Domesday Book. Parts of its course still shape the streets of Marylebone, where lanes like Marylebone Lane follow its old left bank. The river’s waters also fed the lake in St James’s Park and helped drain the area around Buckingham Palace. Today the Tyburn runs entirely underground as the King’s Scholar’s Pond Sewer. Its route can still be traced beneath streets and parks, and a visible conduit in Grays Antique Centre basement lies close to its culverted path. The sewer passes under the Metropolitan Line at Baker Street station, where engineers recently installed a glass fibre reinforced plastic liner to support the ageing structure. The river’s legacy survives in the names of former roads and in the hidden channels that quietly carry its water beneath the city.