Introduction

Building 3189 (SA18) at CERN’s LHC Pt.1.8 site in France is a new multidisciplinary research facility designed to consolidate several CERN services efficiently under one roof. The project focuses on developing a state-of-the-art Superconducting Radio Frequency (SRF) facility to enhance the preparation, maintenance, and repair of SRF components and cryomodules essential to the LHC, HL-LHC, HIE-ISOLDE, and future FCC studies.

Objectives

With usable space across multiple levels, the building is adjacent to the SM18 complex, located in a site previously used as a parking lot. It features a large complex of interconnected ISO 4 to ISO 8 cleanrooms and laboratories operating under stringent environmental controls, supported by advanced cooling and ventilation systems.

The facility also offices, workshops, a control room, meeting rooms, and shared spaces designed for about 24 occupants. A visitor’s path allows to observe activities without causing any disturbance. The architectural approach combines dynamic metal cladding with distinct façade elements to highlight the technical and tertiary zones.

2021

Study

March 2021 – December 2022
2023

Design & Procurement

April 2023 – August 2026
Sep 2026

Construction (WP1)

September 2026 – April 2028
2030

Construction (Other WP)

2030-2031

Sustainability

Sustainability is a core priority, with Building 3189 aiming for BREEAM Excellent certification, incorporating low-carbon materials, Life Cycle Assessment (LCA), and environmentally sensitive landscaping that integrates permeability, biodiversity, and accessibility in line with CERN’s Masterplan 2040.

  • Low-carbon concrete — reduces carbon footprint to 791 kgeqCO₂/m² (tertiary) / 902 kgeqCO₂/m² (whole building)
  • Water conservation — rainwater recuperation covers 88% of irrigation/sanitary needs
  • Biodiversity protection — green roof (790 m²), native species, low-impact felling with compensation, low-nuisance construction
  • Climate resilience & sustainable mobility — 2050 climate risk/thermal modeling, plus 1 parking spot per 3 occupants and 1 cycle space + shower per occupant

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