Category: Project updates
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Adams Road Closure Extended to Prioritise Safety and Efficiency
To ensure the safe completion of the ongoing underground connection works for Building 777, the closure of Adams Road has been extended. While we understand this may cause some inconvenience, the additional time allows the project team to complete the work under safe conditions, particularly following the recent period of high temperatures, when certain activities…
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Briand Bois Factory Visit
Earlier this week, the B777 project team visited Briand Bois’ timber production facilities along with representatives of the Architect, Engineer and Contractor. The visit gave a unique opportunity to inspect the timber elements currently being fabricated for the project, including glulam beams and columns, and CLT floor slabs (cross-laminated timber). Glulam and CLT are both…
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First Timber Beam Ceremony Marks Key Milestone for CERN’s Building 777
On Friday 24th April 2026, CERN celebrated a major milestone in the construction of Building 777 on the Prévessin site with the First Timber Beam Ceremony. While construction projects traditionally mark the laying of a foundation stone, Building 777 reflects a different approach. In line with its timber structure and strong environmental ambitions, the project…
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Façade Prototype for Building 777 – From Vision to Reality
Today marks an important milestone for the Building 777 project at CERN; the full-scale façade prototype has arrived. The architects Henning Larsen (Denmark) and Redraw (France) will use the prototype produced by Briand Bois to verify its appearance and various technical aspects of its design, bringing us closer to realising a high-quality façade for Prévessin’s…
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Building 777 Façade Passes Rigorous Laboratory Tests
Last Thursday, Luca attended a crucial milestone for CERN’s Building 777 project at the CSTB (Scientific and Technical Center for Buildings) in Champs-sur-Marne: the façade testing campaign. This phase of testing was essential, given that the unique façade design does not fall under standard French regulations. To ensure the building’s long-term reliability, a purpose-built facade…
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CERN signs contract for Building 777 construction
CERN has signed a major contract for the construction of Building 777 (B777) on the Prévessin site, marking a significant milestone in the Organisation’s long-term campus development strategy. The works will be carried out by Demathieu Bard, responsible for the overall construction, and Briand Construction Bois, who will deliver the timber structure and façade. Construction…
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Consortium with Henning Larsen Wins Competition to Design CERN’s Building 777
CERN is pleased to announce that an international consortium led by Henning Larsen has won the architectural competition to design Building 777, a new state-of-the-art facility on the Prévessin site. The building will play a central role in supporting CERN’s future scientific activities and providing modern workspaces for staff and collaborators. The design, as part…





