Gare Nanterre-La-Folie ligne 15 Ouest

Gare Nanterre-La-Folie ligne 15 Ouest
  • Transports
  • On study

In short

Project owner: Société du Grand Paris
Start of works: 2023
Entry into service: by 2030
Line 15 West terminus: Saint-Denis Pleyel <> Pont de Sèvres
Journey time: Nanterre La Folie <> Fort d'Issy - Vanves - Clamart in 15 min compared with 45 min today

The transport offer in the Groues district, served by the RER E in 2024, will be completed by the metro line 15 by 2030. This new line, equipped with automatic trains, will link Nanterre-La-Folie station to Fort d'Issy-Vanves-Clamart in 15 minutes, compared with 45 minutes today.

The aim of Line 15 West is to strengthen the development of the economic hub of western Paris, particularly La Défense, Europe's leading business district, by linking it to other strategic points in Greater Paris, such as Paris-Charles de Gaulle and Le Bourget airports.

More than 800,000 inhabitants will thus benefit from new travel possibilities, completed by connections with the other lines of the Grand Paris Express and the Transilien, RER, metro and tramway lines. By 2030, together with lines 15 South and 15 East, it will form a major 75-kilometre ring road around the capital. The waiting time between two trains varies according to the time of day and the week, with a train every 2 to 3 minutes on average.

Benefits for passengers

  • By 2030, line 15 West will offer optimised connections with the Transilien L and U lines, metro 1, RER A and E lines, tramways and surrounding bus lines.
  • La Défense will be 13 minutes from Saint-Denis Pleyel (compared with 26 minutes today)!

The 15 West line in a few figures

  • 14 municipalities involved, including 2 départements
  • 11 stations, 10 of which will connect with the metro, RER, transilien or tramway
  • 22.4 km of automatic underground metro
  • 5.39 billion of investment
  • 2030, when the line will be in service


The declaration of public utility was obtained in November 2016. Preparatory work began in May 2017. The environmental authorisation order was obtained in June 2019. The consultation for the design and build contract will start in the second quarter of 2020.

The project players

The Société du Grand Paris will be responsible for the project management and financing. The line will be built on a design-build basis. The project management is provided by the Setec TPI and Systra groups. Systra is the technical assistant to the project owner.

A word about the Grand Paris Express

The Grand Paris Express is a development and transport project to facilitate suburb-to-suburb travel. Four new lines will be put into service by 2030 (15, 16, 17, 18), line 14 will be extended to the north and south of Paris and 68 new stations will be created.