Silex2, Lyon, plan N2

Silex² Tower Solvay Headquarters

Silex² is an iconic commercial real estate complex located in Lyon, comprising the renovation of an existing high-rise tower, a metal structure extension, and a new low-rise building in the shape of a square. Standing at 130 meters tall, the tower is a prominent feature of the Lyon skyline. Home to Solvay's headquarters, the project offers office space complemented by innovative shared services. It illustrates a contemporary approach to the transformation of commercial real estate, combining performance, flexibility of use, and architectural quality.

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Lyon Silex 2

Informations

Type of project Renovation and new construction
Programme Offices
Contracting authority Covivio
Architects Ma Architectes and Arte Charpentier

Location Lyon, France
Completion date 2021
Surface area 32 000m²
Environmental approach HQE, BREEAM

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Silex² is more than just a renovation: it is the regeneration of an architectural landmark from the 1970s, part of the heritage of La Part-Dieu.

Antoine Durand, founding architect / Mà Architects

25 000
office space, 23 floors, 1 lobby measuring 380 m²

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6price
CTBUH Award of Excellence 2023 - Category: “Best Structure Award”; SIATI Award 2022 - Category: “Real Estate: Best Adaptation Strategy”; CIEL Awards 2022 - Category: “Office Building”; ACEtylène Award 2021 - Category: “Highlighting Built Heritage”; SIMI Grand Prize 2021 - Category: “Towers”; Cadre de Vie Trophy 2021 - Category: “Renovation Projects”

The choice of an architectural graft made entirely of steel will modernize the complex and give this new tower a strong identity, thanks in particular to the slender shape offered by the steel structure.

Jérôme Le Gall, associate architect / Arte Charpentier

Preserve the strength of the existing structure, while giving it a new look and new uses for a true regeneration of the site.

Raquel Milagres, architect, partner / Arte Charpentier

90%
office space on the first day, 130 m high, 2,500 employees

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1 700
terraces

Like most office towers of that era, the EDF tower was no longer suited to its intended use: floors were too small, accessibility for people with disabilities was difficult, thermal performance was poor, etc. These obstacles, often considered insurmountable, could have led to its demolition. In 2010, with the support of Covivio, a different approach was taken. Instead of demolition, consideration was given to revitalizing the building.

Stéphane Royanez, founding architect / Mà Architects

Voir d’autres contenus :

  • Post
Silex², Trophees Cadre de Vie 2021

Trophée du Cadre de vie pour SILEX2

20 October 2021

  • Post

La Tour SILEX² à Lyon : une greffe d’acier au secours du béton

18 June 2020

  • Post

Visite de presse Silex 2

28 August 2019

  • Post

Batiweb : Avec Silex 2, Arte Charpentier confirme sa maîtrise du BIM

17 March 2017

  • Post

Pose de la 1ère pierre de Silex 2

04 April 2019

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Franco-British Hospital – Restructuring and expansion

Levallois-Perret, France, 2027

Silex² Tower – Solvay Headquarters Lyon, France - 2021

Concept

Located in Lyon, in the heart of the Part-Dieu district, the city’s business centre, Silex² is a real estate complex consisting of an existing, renovated tower, its extension adjacent to the north façade, and a 9-storey building that connects with its neighbour Silex I. This new tower will be 130m high, to shine in the heart of Lyon’s most connected district.

It is the result of an urban, architectural and technical reflection on how to restore a new life cycle to the old EDF tower from the 70s. Designed by Jean Zumbrunnen, Charles Delfante and René Provost, this tower is one of the remarkable objects in the architectural heritage of the Part-Dieu district. This imposing concrete building is balanced on a narrower base that is preserved to evoke the history of this emblematic building in the city of Lyon. The choice of an architectural extension entirely made of steel modernises the whole and gives this new tower a strong identity thanks to the slender shape of the steel structure. It rests on the existing tower at the 20th level to withstand earthquakes and wind forces, while preserving the structural independence of the two towers. The 9-storey building adjoining the tower has a mixed concrete and steel structure and is connected to the city by its slender door on the forecourt of rue des Cuirassiers.

Team

Contracting authority
– Contracting authority: Covivio

Project management
– Architect: Arte Charpentier (Jérôme Le GallRaquel MilagresSylvie Levallois) / MA Architectes
– MOEXE: Builders & Partners

Design office
– Environmental ACA: Green Affair
– Structures: Terrell Group
– Fluids: Barbanel
– Economist : AE75
– Façades : Arcora
– Control office: SOCOTEC Paris
– Kitchen: Restauration Conseil
– Acoustics: AVLS
– Lighting designer: Les Éclaireurs
– Landscaper: Paso Doble
– Surveyor: Operandi Charmasson

Specificities
– Address: 9, rue des Cuirassiers 69003 Lyon
– Environmental approach: NF HQE « Bâtiments tertiaires » Passeport Excellent, BREEAM Excellent
– Image credits: Ma Architectes / Arte Charpentier

Informations

Type of project Renovation and new construction
Programme Offices
Contracting authority Covivio
Architects Ma Architectes and Arte Charpentier

Location Lyon, France
Completion date 2021
Surface area 32 000m²
Environmental approach HQE, BREEAM

Silex² Tower – Solvay Headquarters

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