Tolsford Hill BT Tower is a telecommunication tower built of reinforced concrete at Tolsford Hill on the North Downs near Folkestone, Kent. Tolsford Hill BT Tower is one of the few British towers built of reinforced concrete and is 67.36 metres ( 221 ft) high. See also British Telecom microwave network Telecommunications towers in the United Kingdom References RSG: Features: The Towers of Backbone. Communication towers in the United Kingdom Towers in Kent British Telecom buildings and structures Transmitter sites in England