The United Kingdom’s data centre market attracted a record £8.2 billion in investment during the first half of 2026, driven by surging demand for cloud computing infrastructure and artificial intelligence workloads. The figure represents a 31 percent increase on the same period last year, according to data from property consultancy Avison Young.
London remains the dominant hub, accounting for 64 percent of all new capacity currently under construction. Secondary markets including Manchester, Slough, and the Thames Valley corridor have seen accelerated growth as hyperscale operators look beyond the capital for available power and suitable land.
“AI training runs require densities far beyond what traditional server rooms were designed to handle,” said Rebecca Hartley, director of European data centre research at CBRE. “Every major provider is expanding at a pace we simply have not seen before, and the supply chain is straining to keep up.”
The investment surge has drawn attention from policymakers concerned about energy consumption. Data centres already account for an estimated 1.8 percent of UK electricity demand, a figure projected to double by 2030. The government’s recently published Digital Infrastructure Strategy includes provisions for streamlined planning approvals alongside mandatory sustainability reporting for operators drawing more than 10 megawatts.
Grid connection wait times remain a significant bottleneck for new developments. Some projects in the M4 corridor face delays of up to four years for high-voltage connections. National Grid has committed to reducing these timelines through a fast-track process for projects meeting certain renewable energy criteria, though industry groups say the reforms need to move faster.
Industry analysts expect investment levels to remain elevated through the remainder of the year, with several major campus announcements anticipated before the end of 2026. The sector now supports an estimated 85,000 jobs across construction, operations, and associated services, a figure that has grown by 22 percent since 2022.
The rapid expansion has also spurred growth in adjacent industries, including cooling technology, backup power systems, and specialist construction firms. Trade body TechUK has called for a coordinated national skills programme to ensure the workforce pipeline keeps pace with infrastructure investment.