Anthropic has signed a lease for a 158,000-square-foot office in London, increasing its capacity from 200 to 800 employees. OpenAI plans its first permanent London office for 544 staff, set to open in 2027.

London is rapidly becoming a focal point for AI, with over one million square feet leased by AI firms since early 2025. This trend underlines the appeal of London’s exceptional AI talent pool, as noted by Pip White, Anthropic’s EMEA north head.

The UK's favorable regulatory stance on AI investment differentiates it from Brussels, aligning with global standards in safety. The recent AI Safety Summit at Bletchley Park underscored this commitment, showcasing leading firms like Anthropic and OpenAI.

This influx of office space leasing signals a robust trajectory for the AI sector and serves as a bellwether for the health of the commercial real estate market linked to the industry.