Pennycuick was nominated to the Madras Legislative Council in November 1893. He was the last president of the Royal Indian Engineering College at Coopers Hill. He also held the position of President of the Sanitary Board and was a faculty in the University of Madras. He received a Telford medal from the Institution of Civil Engineers. The Australian government sought his advice for avoiding damage from flooding of the Brisbane River in 1899. He was also a keen cricketer.
