 The line was built as the third and final by the municipal Kristiania Kommunale Sporvei, opening on 28 August 1900.The service went through the city center to Anetheum to St. Hanshaugen.The track was transferred to Kristiania Sporveisselskab (KSS) when it bought KKS in 1905, and again to Oslo Sporveier in 1924 when it took over KSS.