Grand Paris Express

Largest design-build contract to date awarded for Grand Paris Express metro project

Map of the future metro line 15's eastern section SGP

The Société du Grand Paris (SGP) awarded the first design-build contract for metro line 15’s Eastern section to the COREA consortium, led by Eiffage Génie Civil. Awarded on Friday, 15 December 2023, it is the largest GPE contract awarded to date, worth 2.54 billion euros. This is also Eiffage’s 35th Grand Paris Express-related contract.

This new metro line, to be built around the French capital, is part of the Grand Paris Express project, one of the largest civil engineering projects in Europe. With 200 kilometres of network, the project involves the creation of four new metro lines (15, 16, 17, and 18) around Paris, the extension of line 14, and the construction of 68 stations. The Société du Grand Paris (SGP) is the public body set up by the French government to manage the deployment and financing of the Grand Paris Express.

Along its 23-kilometre route, line 15 East will pass through 13 communes in two départements, Seine-Saint-Denis and Val-de-Marne. With the southern and western sections of line 15, it will form a 75-kilometre ring road around Paris. The eastern section of line M15 will link Saint-Denis – Pleyel to Champigny Centre in 25 minutes, compared with 52 minutes today.

Line M15 East map (Photo: SGP)
Line M15 East map (Photo: SGP)

Metro Line 15 East contract

This is the second design-build contract for the Grand Paris Express to be awarded, following that covering the section between Saint-Cloud and La Défense on line 15 West. The contract covers the design and construction of 17 kilometres of tunnel and works on the part of the Champigny Centre station dedicated to Line 15 East, 17 service structures, including 2 entrances at Rosny-sous-Bois and Champigny-sur-Marne, and the Rosny-sous-Bois operating centre, which will serve as a storage and maintenance site for the line’s trains and infrastructure.

Map of M15 East (Photo: SGP)
Map of M15 East (Photo: SGP)

The contract also covers the design and construction of six new stations: Bobigny – Pablo Picasso, Pont de Bondy, Bondy, Rosny Bois-Perrier, Val de Fontenay, Nogent – Le Perreux. The timetable calls for the section between the Bobigny – Pablo Picasso and Champigny Centre stations to be brought into service in 2031. As with the Grand Paris Express project as a whole, each station will be the subject of an architectural project designed to serve passengers and adapted to its urban context. For the first time, the contractor awarded a contract to build a Grand Paris Express line will also be responsible for designing and building real-estate projects at the same time as the stations (for the Nogent – Le Perreux and Bondy stations).

Eiffage Génie Civil is the lead contractor, collaborating with eight architectural firms as co-contractors. Architecture Studio will design the Bobigny – Pablo Picasso station and Rosny operating centre. Ar. thèmes associés will design the Bondy and Champigny Centre stations which are part of line 15 Est. Groupement BIG-Silvio D’ASCIA Architecture will design the Pont de Bondy station. Fbcc Architecture will design the Nogent – Le Perreux station. LA/BA will design the Rosny operations centre, VIGUIER will design the Rosny Bois-Perrier station), and Wilmotte & Associés will design the Val de Fontenay station.

Low-carbon materials

The contractor has undertaken to significantly limit the CO2 emissions associated with the works by using low-carbon concrete and steel. In terms of waste management, the COREA consortium will be working closely with the consortium comprising Eiffage Génie Civil, SARPI/Veolia and CEMEX, which holds the contract for the management and use of excavated materials, responsible for recycling the 7.5 million tonnes of earth that will be extracted as part of the work on line 15 East. Awarded in 2022, this contract aims to recover 99 per cent of the excavated soil, at least 15 per cent of which will be used as a substitute for a natural resource such as the production of aggregates, or cement.

Other awards

In July, Île-de-France Mobilités awarded the ORA consortium the contract to operate and maintain the Southern section of the Grand Paris Express (GPE)’s line 15. On 28 November, the Société du Grand Paris (SGP) celebrated the first movement of the new metro in manual mode on this section of the line. The Société du Grand Paris awarded the Intencités15 consortium, headed by VINCI Construction Grands Projets, the first contract for the design and construction of line M15’s Western section in August.

Map of Line 15 (southern section). Photo: Société du Grand Paris Express
Map of Line 15 (southern section). Photo: Société du Grand Paris

The consultation procedures are continuing for the last two design-build contracts for the Grand Paris Express: the contract for the 2nd section of line 15 East, from Drancy to Saint-Ouen, which is due to be awarded in spring 2024, and the contract for the 2nd section of line 15 West, from Courbevoie to Saint-Ouen, which is due to be awarded in early summer 2024.

GPE Metro completion calendar (Source: Société du Grand Paris)
GPE Metro completion calendar (Source: Société du Grand Paris)

Further reading:

Author: Emma Dailey

Emma Dailey is an editor at and

1 comment op “Largest design-build contract to date awarded for Grand Paris Express metro project”

bönström bönström|18.01.24|15:14

What about mere railway, when will a contractor be awarded, design, construction – and maintenance – of basics, of track?
(Squats, cracks – and broken rails, current “state of the Art”, is not ok, as resilency, reactively, now is provided by grinding of railhead, etc., at the mode where, suboptimal, now “optimal maintenance” is mantra – and big business, etc., etc.)

Add your comment

characters remaining.

Log in through one of the following social media partners to comment.