It is one of the churches for the Eidanger parish which is part of the Skien prosti (deanery) in the Diocese of Agder og Telemark.

In the late-1800s, the family of the late shipowner Christen Knudsen provided funds for the construction of an annex chapel in exchange for the municipality agreeing to be responsible for its ongoing maintenance.

The municipality agreed and land from the Nedre Kokkersvold farm was given free of charge for the use of the new chapel.

Langangen Chapel was designed as a neo-Gothic wooden long church with around 150 seats.

The structure is classical with a bell tower at the entrance with a church porch at the foot of the tower and surrounded by a stairwell, a rectangular nave, and a smaller, rectangular choir with a sacristy next to it.