Partial upgrade to metro standard Initial proposal The section of the Luas Green Line between Charlemont and Sandyford was built with the eventual intention that it be upgraded to carry metro services. This was first outlined by the Dublin Transportation Office (now part of the
National Transport Authority) in its "Platform for Change" report published in November 2001, which proposed the section would be upgraded and included in a metro line between
Dublin Airport and Sandyford. The metro project was eventually launched as
Metro North with an altered route from
Swords to St. Stephens Green. No further plans for an upgrade of the Luas line were made before Metro North was shelved by transport minister
Leo Varadkar, then
Minister for Transport, Tourism and Sport, in November 2011. In 2015, the metro project was revived by the National Transport Authority as the "new Metro North". A strategy report for transport in the Greater Dublin area published in 2016 additionally included the Metro South project, which would see the Luas Green Line upgraded to metro standard between Ranelagh and Bride's Glen "to cater for the longer term usage forecasts". The proposal included the construction of a tunnel extension from the Ranelagh area to St. Stephen's Green, where it would have linked with Metro North. At the time, it was planned that trains could either enter the tunnel at Ranelagh to run on the Metro North route towards Swords, or continue at street level on the Luas tracks towards Broombridge. In 2018, a reworked metro project was announced as
MetroLink, which builds upon the Metro North and Metro South projects. The line would run from Swords to a new interchange station at Charlemont, where trains would emerge and continue above-ground towards Sandyford on the tracks currently used by the Luas Green Line. Luas trains would be replaced by metro services between Ranelagh and Sandyford, but continue to operate between Broombridge and Charlemont as well as between Sandyford and Bridge's Glen. The National Transport Authority stated at the time that MetroLink was planned to enter service in 2027.
Deferral During the public consultation process for this proposal,
Dublin City Council submitted that a large sewer was blocking the path of where the tunnel was planned to emerge, just south of the existing Charlemont tram stop. as the tunnel boring machine needed to reach the new portal in Beechwood before the Green Line upgrade works could begin. This would therefore delay the opening of the entire Metrolink line. The constructability report detailed, however, that if the Green Line Upgrade was done as a second phase to the northern section, then the northern could open on schedule. By completing the Green Line upgrade as a second phase, time savings could also be made on the upgrade works. The MetroLink project has since proceeded to without the section between Beechwood and Sandyford. The line would terminate at Charlemont in the south, where passengers could change to Luas Green Line trains for onward travel to Sandyford. In May 2019, an executive of
Transport Infrastructure Ireland reaffirmed their commitment to extend the metro to Sandyford, though it would not proceed "now, or in the short term."
Proposed extension to Finglas In July 2020, a public consultation was announced seeking feedback on the extension of the Luas Green line from Broombridge, across the River Tolka through
Tolka Valley Park, through west
Finglas before terminating at
Charlestown. As of 2024, the "Luas Finglas" project was projected to be a four-station northward extension from Broombridge, with stops at St Helena's Road, Finglas Village, St Margaret's Road and Charlestown. Planning approval was granted for this extension in October 2025. ==Gallery==