This school is expected to close in 2025 due its rebuilding costs[1] and has stopped accepting year 7 pupils, since September 2023.

In February 2016, the school received a validation report from Education Scotland, where it was rated as "very good" in all but one quality indicator.

Students have asserted challenges they face in comparison to other regional schools and pushed back against its merger with Les Varendes High School for sixth form, citing lack of sufficient facilities and the decaying structure of the building as two main concerns.

In April 2012, Vicky Godley was appointed head of the school and served at La Mare until September 2020.

[7][8] Students from La Mare de Carteret can choose to continue learning at the Guernsey College of Further Education or the Sixth Form Centre when they leave school.