 It represents processes of national development and strategic defence policy that helped to shape the modern Australian nation, it played a pivotal role in the career of the last Colonial Architect and affected the nature of public administration in New South Wales.It was the site for the first War Veterans Home in Australia

The place is important in demonstrating aesthetic characteristics and/or a high degree of creative or technical achievement in New South Wales.Bare Island can be characterised as a low monolith extending along the line of La Perouse Headland.