Construction of the 89 000 square foot (8279 square-metre) Gulf Islands Secondary School began in May, 1992 with a project cost of just over 13 million dollars. The school opened in September 1994 with 678 students in grades 8 through 12. Salt Spring Middle School opened the following year in the old high school with students from grades 6 through 8, leaving GISS with grades 9 through 12.

At the time of opening, GISS was one of only a handful of buildings in British Columbia with ‘ground source’ heat; 20 kilometres of pipe collect heat five feet under the playing fields. And another 40 kilometres of pipe in the school’s floors provide radiant heat. The school now sports a solar array on the gym roof. See this Learning Links post for details.