Originally built in 1873 on Ulladulla breakwater, relocated to Warden Head in 1879. Constructed of riveted wrought iron plates. Designed by Edward Orpen Moriarty in the Colonial Architects Office & constructed by Joseph Mather in Darling Harbour, Sydney. It is one of only two lighthouses in Australia so constructed, the other being at Wollongong Harbour.The round porthole windows are an unusual feature in Australian lighthouses. In the 1920s there was a windvane on top.The original oil lamp (visible for 19km) was converted to an automatic flashing acetylene lamp in 1920, and then electric power in 1964.