Initial development of Helensville was around the kauri milling industry, but by the start of the 20th century dairying was becoming of increasing importance. It was also becoming somewhat of a tourist centre, owing to the presence of hot springs 3 km to the west of the town at Parakai. A lot of the early history of Helensville is described in the book "Men Came Voyaging" written by Colleen Sheffield, who lost her life in a bus accident before the book was completed.