Computer Science Building Completes Major Low-Carbon Refurbishment

The University’s Computer Science building, first opened in 2000, has reached a major sustainability milestone following the completion of a comprehensive refurbishment project in December 2025. The works mark a real step forward in reducing the University’s carbon emissions.

Funded through Salix Finance’s Public Sector Decarbonisation Scheme (PSDS), the refurbishment focused on eliminating fossil fuel use for heating while improving the building’s overall energy efficiency. As part of the project, the existing gas boilers were fully removed and replaced with a new air source heat pump system, delivering fossil fuel-free heating to the building.

Alongside the heating upgrade, the project included the installation of new triple-glazed windows, as well as additional roof and wall insulation. These fabric improvements significantly reduce heat loss, helping the building retain warmth more effectively and lowering overall energy demand.

The new air source heat pump works by extracting heat from the outside air- even at low temperatures- and transferring it into the building to provide space heating. Using electricity rather than gas, the system operates with high efficiency by moving heat rather than generating it through combustion. For every unit of electricity used, the heat pump can deliver multiple units of heat, making it a low-carbon and cost-effective alternative to traditional boilers.

Commenting on the project, Andrew Thomas, Senior Energy and Carbon Manager, said: "This refurbishment demonstrates how existing buildings can be successfully retrofitted to support the University’s wider decarbonisation goals. By combining fabric improvements with low-carbon heating technology, the Computer Science building now benefits from improved comfort, reduced energy use, and a substantially lower carbon footprint."

The project forms part of the University’s ongoing commitment to reducing emissions from its estate and transitioning away from fossil fuels, while ensuring high-quality, future-proofed spaces for staff and students.