It is an annex chapel for the Fosnes parish which is part of the Namdal prosti (deanery) in the Diocese of Nidaros.

The white, wooden chapel was built in a long church style in 1926.

[1] The church is not regularly used for services, but it is used for funerals at the adjacent cemetery.

There is an annual worship service held at the chapel once each summer at Olsok.

It was determined that the new parish church should be built in the village of Dun, in the middle of the island of Jøa since that was more centrally located for the population.