Many students from all years volunteer to be part of the school's Green Group (formerly known as the Environment Team). The group, under the guidance of a teacher volunteer, promotes various sustainability projects around the school and meet regularly. They participate in specific days that celebrate maintaining our environment such as ‘Clean Up Australia Day’, ‘Plant a Tree Day’ and ‘Green Day’.
In the past, the Green Group installed water coolers around the school, and manufactured a Tech water bottle, to promote healthy drinking habits amongst students and to reduce plastic waste. The group sponsor a koala at the Featherdale Wildlife Park, south of Sydney. As well, they have initiated a number of hanging gardens to enhance the environment and beautify our red brick buildings.
The school is on a large site, and the Green Group also assist with garden maintenance, including the peaceful Mathew Goodall Memorial Garden, established as a result of Centenary fundraising in 2011.