The extension serves three new stations: Theater, Faiencerie and Stäreplaz/Etoile, and links the Kirchberg quarter to the city centre. The initial 3.6km eight-station northern section between LuxExpo and Rout Bréck-Pafendall (Pont Rouge) opened in December 2017.

The new section was opened by the minister of sustainable development and infrastructures, Mr François Bausch, mayor of the City of Luxembourg, Mrs Lydie Polfer, alderman in charge of mobility, Mr Patrick Goldschmidt, and the managers of tram operator Luxtram.

The newly opened section is completely catenary-free and CAF has been awarded a €40m contract for another 12 Urbos 3 low-floor LRVs fitted with supercapacitor accumulator technology for ground-level rapid charging at stations to operate on the line, in addition to the nine CAF trains currently operating on the Luxexpo - Stäreplaz/Etoile line.

The section is part of a €549m project to build a 16km route through the city, which will have 24 stations and frequencies of between three and five minutes.