Yishun Town Secondary School (YTSS) was formally established in January 1986 with Mr Lim Yam Meng as the founding Principal. Commencing with only 9 classes and 13 pioneer teachers, YTSS shared premises with Yishun Secondary School before we moved into the campus at Yishun Street 21 on 31 March 1988. The Official Opening Ceremony of the school held on 29 July 1988 was graced by Dr Koh Lip Lin, Member of Parliament for Nee Soon.