The Falconbrook is underground along its entire length, but is reflected by the naming of several local features (including the Falcon Road, the Falcons estate, and the Falconbrook school), and the significant valley under Northcote Road in Battersea. The source of the Falconbrook is in Tooting Bec Common, South West London.
Thames Water carried out work at the end of 2006 to alleviate flooding of the Falconbrook in Balham, involving a series of road closures.
In July 2007 the Falconbrook burst out of the pavement in several places and flooded the Falcon Road near Clapham Junction, during the 2007 floods.