Politicians are raising the alarm, while MI5 quietly welcomes the prospect of Beijing’s new London facility

While there has been no shortage of politicians eager to raise concerns about China’s proposed “mega embassy” near the Tower of London, the espionage community quietly takes a different view, arguing that concerns about the development are exaggerated and misplaced.

The domestic Security Service, MI5, is already quietly welcoming the prospect of rationalising China’s seven diplomatic sites to one, but a more significant argument is that modern technology and the nature of the Chinese threat means that, in the words of one former British intelligence officer, “embassies are less and less relevant”.

Spies have long operated from diplomatic outposts, posing as officials or trade envoys. If, as is expected, China is granted planning permission this month to build a new embassy complex at Royal Mint Court, it will employ over 200 people. All are expected to be Chinese nationals, in line with Beijing’s normal policy, from the lowest kitchen porter to the ambassador, with residences provided on site.

As is the case now with its smaller existing embassy on Portland Place, north of Oxford Circus, among them will be a handful of undeclared officers from its ministry of state security (MSS) and military intelligence. According to one former MI6 officer, “they will be acting as ‘radars’, highlighting contacts of potential interest, getting to know people,” all of which are routine intelligence tasks.