The large two-story storehouse was built on the Storbakken farm in 1854 when the farm was purchased that year as a parsonage for the parish. The storehouse is constructed of log timber with dovetail notches. The gable roof is supported by rafters and is covered with birch bark and turf. On the ground floor, the wall facing the courtyard is set back to form a covered porch in front of the entrance. The storehouse was moved to Fossmo in 1969.