Cardiff City Hall - Project Update

Cardiff’s City Hall is a 120-year-old Grade I listed building and stands as one of Wales’s most prestigious civic landmarks. The building is now undergoing a comprehensive Mechanical and Electrical upgrade to modernise its infrastructure while safeguarding its heritage value.

This complicated refurbishment requires meticulous planning as well as a coordinated approach to ensure there is no disturbance or damage to the building in any capacity.

Working alongside Andrew Scott’s, CMB is delivering the full M&E package for the building, which includes the installation of new mechanical plant, upgraded electrical distribution systems, containment and controls, upgrading high and low-voltage cabling, installing a new substation, and the integration of modern building management technology. We are also implementing mechanical and electrical upgrades as part of a wider phased refurbishment across key spaces, including the Council Chambers, Upper Great Hall and Lower Hall.

A key element of the upgrade is also the installation of air source heat pumps as part of a transition to low-carbon heating systems, replacing the obsolete steam boiler plant that once served the building. Improving City Hall’s sustainability lies at the heart of this development. We will be working with our expert in-house renewables division throughout to ensure the Council’s environmental commitments are met and that the building, upon completion, will operate as efficiently and sustainably as possible.

Now 7 months into the development, we are pleased to have successfully completed the main plantroom works, installed one of the new Air Handling Units onto the Ferrier Hall roof and are progressing well with M&E services throughout the building.

We are incredibly proud as a Cardiff-based company to contribute to the long-term future of one of the city’s most prestigious landmarks, reflecting both the technical expertise involved and the wider community significance of the project.