In 2013 there was a decision that the Stockholm metro system will be extended with 10 new stations. This calls for additional train depot capacity, and in 2016 it was decided that the existing depot in the Högdalen industrial area will be expanded to meet these needs. The new facilities, with room for 4 metro trains, will be built underground. Here the metro trains will be cleaned, serviced and repaired. New access tracks will also be built from the metro line 18, in addition to the existing access tracks from the metro line 19.