Hastings Girls' High School was opened officially on 24 March 1956, with Miss C M M Miller as Principal and Miss Trotter as First Assistant Principal.

The school swimming pool was officially opened in 1960 and the following year our assembly hall became a reality.  Mr Fuller, the art teacher, painted the mural that represents famous women through the ages.  It can still be viewed today on the back of the school assembly hall.  Another major addition to the school was the Gymnasium in October 1967.

Miss Kelt, a former teacher from Hastings Girls' High, became Principal of the school in 1968.  

Early in 1968 a larger Library was added to the end of the 30 Block, and the original library became Room 31.  During the 70's we added new laboratories to the Science Block, and these were finally opened in 1981.

During the 80's a Clothing Room and Art and Craft Rooms were added  to the 30 and 40 Blocks respectively, the end of the One Block was converted to a Lecture Room and a Senior Common Room, and a Music Suite and Audio-Visual Room were completed.

During Miss Davidson's time at Hastings Girls' High a Small Gym was added to the existing Gymnasium, and the science Block refurbished.

In the 90's Apple computers were installed in two rooms in the 40 block, and then in 1995 our school was networked and two computer labs of IBM Compatible Computers were set up, as well as computers being installed in the library and pods in each block.