The original house was probably extended to the length of the present building during the latter half of the 1700's. The interior division into rooms is the same today as it was during the 1800's. 

The wood nymph who wanted to marry

Wood nymphs live under Breistrand field in Alsvåg. Once, a fair wood nymph proposed marriage to rich Jacob Maas, but Jacob refused. The wood nymph became angry and put a curse on Jacob: he would one day become as poor as he now was rich. And curse held. Jacob died a poor man, alone in a turf hut at Lia.

Nordlandsbåt i god bør.

In the 17^th century, the price of grain increased drastically in relation to the price of stockfish. Fishing often went wrong too, so that people were forced to depend more on agriculture. In this period, Alsvåg flouriched, because, by Vesterålen standards, this farmland was rich and fertile.

Alsvåg Farm eventually came to play many roles. Today, the manor house is a museum in the midst of an active cultural community. The museum buildings are on the top of a large mound, wich consists partly of the remains of settlements for several centuries.

In addition to agriculture, trade, and freight shipping, many other activities have been connected with Alsvåg farm. For example, it was seat of Langenes Administrative District (fjerding). From 1818, there was a school on the farm grounds for 80 years. In about 1850, Alsvåg became a regular place of call for steamers. A quay was built, and there was a waiting room in Alsvåg Farm, which also housed a post office, telephone exchange, doctor’s office, a shop, and a fish receiving station.