Located on 69-hectare of waterfront land 11km south of Perth, Aquinas College is a stunning site for a campus and vibrant community. The campus comprises a number of classrooms, residential buildings, arts and sporting facilities, including a gymnasium and award-winning Chapel. The Edmund Rice Administration wing, colloquially known as The Castle, and the Chapel are both listed with the Heritage Council of Western Australia.

Much of the Aquinas grounds are protected bushland and is cared for by students under the guidance and direction of the Mount Henry Peninsula Conservation Group.