Extension of line 11

Métro Line 11 currently connects Châtelet, at the heart of Paris, to Mairie des Lilas. Its extension eastwards up to Rosny-Bois-Perrier stemmed from a distant claim from local authorities, prior to the Grand Paris Express project. Funded by the Ile-de-France region, the French state, the Seine-Saint-Denis département and RATP, the new section will be operational by 2020.

The decision to extend Line 11 from Rosny-Bois-Perrier to Noisy-Champs was made while the Grand Paris Express super-métro was being agreed on, a timing that turned out to be in favour of the locally-supported line 11 initiative. The new section is scheduled to be in service by 2025.

Realizing and commissioning these two extensions will take place in two steps between 2022 and 2025.
Commissioning milestones:

•  2022: Mairie des Lilas / Rosny-Bois-Perrier (STIF/RATP project)
•  2025: Rosny-Bois-Perrier / Noisy-Champs

Project supervision
The construction of line 11 extension from Mairie des Lilas to Rosny-Bois-Perrier will be controlled by STIF and RATP, co-supervisors for this section. The next extension, from Mairie des Lilas to Saint-Denis Pleyel, will be built by Société du Grand Paris (SGP).


Phase 1 – By 2022

Line 11 – Mairie des Lilas / Rosny-Bois-Perrier

This extension will facilitate moves within the départements East of Paris and give better access by métro from the capital to nearby commercial infrastructure such as Rosny 2 shopping centre and Domus mall in Rosny-sous-Bois. The new section will also interconnect with RER E and Grand Paris Express future Line 15.

Where do we stand?

Provisional timeline produced by STIF and RATP:
•    Public consultation: September – October 2013
Taking place from 16th September to 30th October 2013
•    Report from the Commission of Enquiry: November 2013
The Commission of Enquiry delivered an unreservedly favourable opinion about the project.
So far, preliminary project studies have been conducted and should be completed by 2014.
•    Statement of Public Utility: by May 2014
•    Construction kick-off: September 2016
However, a preparatory drill was done in Rosny-sous-Bois in the early 2015 and a well of 20 metres depth several meters in circumference was drilled to Les Lilas near the future station Serge Gainsbourg.
•    Commissioning target date: by 2022

Phase 2 – By 2025

Line 11 – Rosny-Bois-Perrier / Noisy-Champs

Line 11 extension from Rosny-Bois-Perrier to Noisy-Champs is encapsulated in the Grand Paris Express project, under the supervision of Société du Grand Paris (SGP). The new section, which will interconnect with RER line A and metro lines 15 and 16 in Noisy-Champs, is to be commissioned by 2025.

Where do we stand?

The project layout is still being examined and no further step has been taken so far.

Provisional timeline:
•    Public consultation: 2016
•    Commissioning target date: by 2025