In 1939 the school moved to its current location , and the building was expanded in 1998 .
The classes were taught at Valler farm during the first years , but was later moved to Sandvika .
In 1939 the Valler moved to Valler 's current location , and the building was expanded in 1998 .
The classes were taught at Valler farm during the first years , but was later moved to Sandvika .