Arnadal church was designed by Johannes Henrik Nissen, and has 185 seats.
The church was consecrated on 26 April 1882, by Bishop Essendrop.
In the 1950s, the church was restored. At the same time, the name of the church was also changed. It used to be called Arendal, but in order not to be confused with the town in Southern Norway, they changed this in 1952. The church was then rededicated in the autumn of 1956.
The altarpiece in the church shows Jesus walking with two disciples. The picture was painted by Otto Valstad, and is a copy of a picture made by Anton Dorph. In 1980, the previous organ in the church was replaced, when the previous one was damaged. The organ that is in the church today was built in Gothenburg, by Hammarberg.
Along the walls inside the church hang knotted carpets, designed by Hans Gerhard Sørensen.
There is both parking and a toilet. This also applies to HC.