The Green Cape Maritime Precinct is of state heritage significance as a notable lightstation in the "highway of lights" that were erected along the NSW coastline during the late nineteenth century. Green Cape is a prominent headland projecting out into Disaster Bay and the lightstation was a significant development in protecting the shipping trade along the far south coast. At the time of its construction, the lighthouse was one of the earliest and most extensive concrete constructions ever attempted in Australia and the tallest in NSW.