Launched in 2010 and hopefully completed by 2030, the Grand Paris project is a marathon. If Rome wasn't built in a day, then neither were the expansions of the Paris metro. This is because the project is no mean feat: 200 kilometers of additional metro lines, 68 new stations, four additional lines and an investment of 38 billion euros. Le Parisien takes a closer look at the construction schedule.
Line 14 has already celebrated its first expansion, with the opening of Porte de Clichy station, followed by the completion of the Olympiades - Orly southern section in 2024. Villejuif Gustave-Roussy station, which connects with line 15, will open much later.
What about line 15?
Grand Paris Express: inauguration of line 15 Sud postponed to summer 2026
With 75 km of track, it will be the longest metro line in France! Anticipated by many residents of the Paris region, line 15 will run all around Paris, crossing no less than 45 communes. While the opening of the southern section was announced for the end of 2025, its commissioning has now been postponed until summer 2026. The inauguration of the Eastern and Western sections is scheduled for 2031. Here's everything you need to know about the future Grand Paris Express metro line, which will carry over 1.5 million passengers every day. [Read more]
What about line 16?
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. [Read more]
What about Line 17?
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! [Read more]
What about line 18?
Finally, line 18 is scheduled to run from Orly to Versailles Chantiers. Here again, the line will be commissioned in two stages. The line will open in 2027 as far as Saclay, then reach Versailles in 2030.
To visualize these new lines, take a look at the Société Grand Paris interactive map .
