Line 15

Grand Paris Express: the upcoming station will reveal a monumental 291-step staircase.

With 291 steps, each 3.5 meters long, this upcoming Grand Paris Express station is already dizzying. Served by the future Line 15, the station will also be France’s deepest, with platforms roughly 52 meters underground.

Grand Paris Express: what is the current status of the work on lines 15, 16, 17 and 18?

Tunnel for Line 17 completed, tests of automated metros underway, station works… The Grand Paris Express projects are moving ahead at different speeds. Here’s where the four new lines stand and the steps still to be cleared before they open.

Km 13 in Nanterre: an artistic festival on the construction site of the future Grand Paris Express station

Interested in discovering the construction site of a future Grand Paris Express Line 15 station through a free arts and culture festival? Join us on Saturday, May 30, 2026 at Nanterre La Folie station, in Hauts-de-Seine, to enjoy strolling performances, shows, and a joyful dance party!

Take a behind-the-scenes look at the Grand Paris Express with a free tour of the Fabrique du Métro.

In Saint-Ouen-sur-Seine, among the various warehouses of the Docks industrial zone, you'll find the Fabrique du Métro. The Fabrique du Métro is a genuine laboratory for experimenting and testing the future metro lines of the Grand Paris Express, and offers free tours of what our future public transport systems will look like.

Line 15: Abbesses to lose its status as the deepest metro station

The Abbesses metro station has always had the reputation of being the deepest in the Paris region. But it's about to be dethroned, by a station on the future line 15, in Val-de-Marne.