Covivio strengthens partnership with Thales in the Vélizy-Meudon business hub

  • Corporate & Real estate

June 09, 2022

Agreement on the development of a 37,900 m2 extension to the “Hélios” Campus and the prolongation of existing leases

Covivio announces the signing of an agreement with Thales on the development of a new 37,900 m2 turnkey campus in Vélizy-Meudon, while extending the existing lease terms. This transaction reinforces the trusting relationship established between the two partners and extends the existing “Hélios” Campus delivered in 2014 by Covivio. The new extension will house the teams of Thales’ Land and Air Systems subsidiary from 2026.

This new extension demonstrates the attractiveness of the Vélizy-Meudon business hub, where we have been based for nearly 20 years. It also vindicates the merits of our long-term partnership approach and the support we provide to our key account clients in their real estate strategy, particularly through the development of turnkey projects that integrate their specific needs, while anticipating new uses.

Christophe Kullmann
CEO of Covivio

Covivio and Thales, a long-term real estate partnership

The story began in 2003 with Covivio’s acquisition of an 18-hectare plot of land in the Vélizy-Meudon business district, where Thales was historically based.
In line with its strategy of developing scalable turnkey campuses for key accounts on this site, Covivio signed an agreement with Thales in 2012 on the development of an initial 46,750 m2 campus called “Hélios”, which was delivered in 2014.

Surrounded by 10,000 m² of landscaped areas, Hélios offers users over 10,000 m² of service facilities including a 400-seat conference hall, a business centre, a fitness room, a concierge service, various catering areas, a training centre and the “Thales Learning Hub” university. In addition to its comprehensive service offering, Hélios features functional, bright and ergonomic work and relaxation areas with interior design by Saguez & Partners. The “Hélios” campus is currently owned under a joint investment partnership with Crédit Agricole Assurances.

It was built alongside a first historical building of 41,520 m², owned by Covivio and occupied by Thales, and located on the adjacent plot.

Today, the partnership continues with the signing of an agreement on the construction of a new 37,900 m2 building, “Hélios 2” (7 floors + 3 basement levels), which will offer workspaces, communal areas including a restaurant, showrooms and service areas, and datarooms. The building’s tenants will also have access to over 9,000 m² of green spaces.

Eventually, the Thales campus will bring together more than 4,000 employees across the various buildings.

The new 12-year firm off-plan lease agreement signed between Covivio and Thales will come into effect on delivery of the extension, scheduled for the first quarter of 2026.
Meanwhile, the two partners have extended the term of the existing leases: for “Hélios” until 2037 and for the historical building until the end of 2034.

In line with Covivio’s CSR ambitions, this building is intended to be exemplary in environmental terms and aims for the highest levels of certification: HQE Sustainable Building – Excellent, OsmoZ and R2S accreditation.

An agreement that confirms the dynamism of the Vélizy-Meudon business hub

Vélizy-Meudon is the second largest business hub in the Paris region housing nearly 50,000 employees and 1,000 international companies. This new project reinforces the attractiveness of this area, which is an integral part of the Paris-Saclay science and technology cluster, which meets companies’ current demands for diversity, accessibility, performance and services. “Hélios 2” is a further addition to the iconic projects already completed by Covivio on this site: the Dassault Systèmes Campus (98,000 m2), Ducasse Education (5,100 m2) and the Campus Eiffage (33,000 m2 sold at the end of 2021).

Key features of the extension project

Total surface area of 37,900 m² (in addition to the existing 88,300 m²), including:


of office space including 2,100 workstations


of platforms and datarooms


of communal areas, including a restaurant, showrooms and staff services areas


of specific technical rooms, cloakrooms, toilets, etc.

  • More than 9,000 m² of green spaces
  • Completion: 2026
  • Architect: Arte Charpentier
  • High level of certification targeted: HQE Sustainable Building – Excellent, OsmoZ and R2S.


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