Société des grands projets

Transport: Prune Nourry’s army of women unveiled in a preview at Saint-Denis–Pleyel station

Want an exclusive preview of the sculptures that will make up Prune Nourry’s monumental work, soon to be installed in the atrium of Saint-Denis–Pleyel station? Until Sunday, October 25, 2026, the artist is exceptionally opening the doors of her studio on the station’s first floor, free of charge (registration required). It’s a chance to wander among this army of women created by the French artist.

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: the new timetable for lines 15, 16, 17 and 18, following the announced delays

The timetable for the Grand Paris Express is still evolving. Line 18 is now expected to open in December 2026, while the first sections of lines 16 and 17 are slated to open in 2028. Here are the projected timelines for the four new metro lines.

Grand Paris Express: come celebrate the completion of the works on the aerial stations of the Saclay plateau.

As the opening of the first stretch of the future Line 18 of the Grand Paris Express is expected this autumn, end-of-construction festivities are being organized this summer in Essonne. Meet on Tuesday, June 30, and then Monday, July 6 and Thursday, July 9, 2026 to enjoy artistic performances while touring the future elevated stations on the Saclay plateau.

Grand Paris Express: here is the start date for putting the first stretch of Line 18 into service.

Elle sera la première des quatre nouvelles lignes du Grand Paris Express à être inaugurée, avant les lignes 15, 16 et 17. Initially scheduled for October 1, 2026, the opening of the first section of line 18 will ultimately not take place until December 2026. So by the end of the year, passengers will be able to travel between the Massy–Palaiseau and Christ de Saclay stations in Essonne. Line 18, the first entirely new metro line in Île-de-France in thirty years, is thus expected to ease the daily lives of many students, researchers, and workers who live, study, or work nearby.

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!

Transport: Soon, it will be possible to reach Roissy-Charles de Gaulle Airport by train.

In 2030, travelers will be able to reach Roissy-Charles de Gaulle Airport directly from the northern suburbs of Paris via the metro, thanks to the upcoming launch of Line 17. This new extension of the Grand Paris Express will connect Saint-Denis – Pleyel to Le Mesnil-Amelot, with a stop at the airport. Here’s what you need to know.

Paris: a free exhibition to discover the works of art of the Grand Paris Express

This autumn, the concourse of the Saint-Denis - Pleyel station is transformed to host a free exhibition. Between two journeys on line 14, come and discover a selection of 70 works of art from the stations of the Grand Paris Express.

Journées du Patrimoine 2025: take a behind-the-scenes look at the future stations of the Grand Paris Express

The European Heritage Days are back this weekend. To mark the occasion, 13 future stations of the Grand Paris Express will be opening their doors to the public free of charge. Join us this Saturday, September 20, 2025, to visit the construction sites of the Clamart station, the Châtillon - Montrouge station and the Massy - Palaiseau station. Here's everything you need to know.

KM12: Chelles, a free artistic celebration on the site of the future Grand Paris Express station

Would you like to take part in an artistic celebration to discover a future station of the Grand Paris Express? Join us this Saturday, June 14, 2025, at Chelles-Gournay station, east of the capital, to enjoy this unique and unusual event, free of charge. Click here for the program!

Line 15 South: behind the scenes of the Grand Paris Express trials

The testing phase is an essential step before the opening of a new metro line. With the opening of line 15 Sud now scheduled for the last quarter of 2026, we visited the Villiers-Champigny-Bry station, considered to be a "pilot fish" station, as well as the Champigny operations center next door. We take you behind the scenes of the Grand Paris Express trials.

Grand Paris Express: everything you need to know about the future metro line 17

Announced as a major new axis for the north of the metropolis, line 17 will cross three departments of the Paris region by 2030. Thanks to the opening of 8 new stations, it will soon be possible to reach Le Mesnil-Amelot from Saint-Denis - Pleyel in less than 25 minutes!

Grand Paris Express: everything you need to know about the future metro line 16

It will be the eastern ring-road of the Grand Paris metro network! With its 27.5 km of track, line 16 will link the Noisy-Champs station to the Saint-Denis Pleyel station by 2028, crossing two departments of the Paris region and serving 10 stations. Here's everything you need to know about this future metro line of the Grand Paris Express.

Line 14: the extension now inaugurated, what you need to know about the new stations

Considered the "backbone" of the Grand Paris Express, line 14 has now been extended to the north and south. As of Monday June 24, 2024, line 14 links Orly airport to Saint-Denis Pleyel in 40 minutes. Communes served, new stations and stations, connections... here's everything you need to know about the extension of this famous line 14 in Paris and the Île-de-France region.