[1] On 24 June 1964, the Minister of Education, Ong Pang Boon, declared the school open as "Balestier Hill Integrated Secondary Technical School".
In 1986, the Chinese stream was discontinued; the year after, the Alumni Association had its inaugural AGM.
In 1994, the first Balestierian of the Year Award was given to the pupil who contributed service to the school and performed best in studies and ECA.
In 1997, a handing-over ceremony took place and the school began operations at the new site.
The merged school operates from the current site at 11, Novena Rise.