The establishment of Oikumene Church was due to the urgency to accommodate the needs of Christian worship place for the plantation employees and locals nearby. This project is a part of the CSR Programme (Corporate Social Responsibility) from PT. KMS, a company that work in plantation field. The Church is located in the highest altitude and East - West orientation.

The design is an approach of Single Materiality, which is using one material as a whole space creator, and in this project, wood, is chosen as the material. This approach is a team idea to design by using local material . The architectural concept inspired by Rumah Betang, a traditional dwelling in a form of long house that used by the locals, the Dayaks. Philosophically this church designed by reflecting on how God save human race from sin, which depicted by the architecture on how the slanted roof sustained by the church’s wall.