Lobbying from residents and businesses in the nearby town of Brill led to an extension being built in 1872 from Wotton to Brill railway station, at the foot of Brill Hill three-quarters of a mile (1.2 km) from the hilltop town of Brill itself. Two mixed trains each day were introduced in each direction, and the line was renamed the Brill Tramway. The Duke bought two Aveling and Porter traction engines modified to work as locomotives for the line, each with a top speed of , although a speed limit of was enforced.
