There was a country store on Sundvorøya from the 1880s, until trading started on the mainland. The present buildings date from this time. The store had a shop on the ground floor and living rooms above. This building is connected with a boathouse, which served as a store.
Sundvorøya was added to the coastal steamer route in the 1890s. “Dampen”(the Steamer) was served by small boat as the sea was too shallow near the steamship harbour close to the trading houses. This stone shallow is supposedly ballast stones carried by Scottish lumber ships. It has been said that Sundvor was a shipping harbour for lumber in the 15-1600s. Place names like Skottabeleggjet and Bjelkaneset are reminders of this first trading activity at Sundvor island