Recent construction plans for China’s new super-embassy in London, which were recently released, have raised significant national security issues in the UK. The plans reveal a hidden underground chamber alarmingly near some of Britain’s most sensitive communications cables.
Critics of the site, situated just a few feet from vital internet infrastructure, have expressed concerns that this secret room could serve as a center for Chinese espionage. While the government claims that no sensitive data travels through these lines, they do handle financial transactions and internet traffic for millions of users.
The blueprints were published without edits by a news outlet just days before Prime Minister Keir Starmer was expected to approve the plans ahead of a trip to meet with Chinese President Xi Jinping.
A government spokesperson emphasized that national security is a top priority, assuring that security experts have been involved in the process all along.
The facility, set to be built on the grounds of the former Royal Mint, will become Europe’s largest Chinese embassy. Plans indicate that China intends to demolish and reconstruct underground walls, placing personnel and equipment just over three feet from critical fiber-optic cables. Security analysts warn that such proximity could allow for “cable tapping,” which might involve inserting listening devices or intercepting optical signals.
According to Professor Alan Woodward, a security expert from the University of Surrey, the risk of espionage is technically possible given the site’s layout. He described the demolition plans as a “red flag,” saying it would tempt anyone in power to exploit the situation.
Additinally, the hidden chamber is reportedly designed with at least two hot air extraction systems, which suggests that it could be used for high-performance technology needed for espionage. The revealed plans also point to a network of 208 secret rooms underneath the embassy, including emergency backup generators, sprinkler systems, and more, indicating that staff may have to work underground for prolonged periods.
These construction plans have ignited public anxiety that the new complex could become a hub for intelligence activities for Beijing. Reports suggest that the UK is under pressure to reassure its intelligence partners, including the US, that no sensitive data is transmitted over these lines.
Alicia Kearns, the shadow national security minister and a vocal opponent of the embassy proposal, stated that the approval would provide China with a significant strategic advantage that could threaten British interests. In a post on social media, she expressed that permitting the embassy would be akin to giving China a platform for potential economic warfare against the nation’s critical financial infrastructure.
