Sir Keir Starmer has approved China's mega embassy in London despite concerns from critics about national security. The decision on whether to approve the 20,000 square metre complex at Royal Mint Court had been delayed twice.

Local residents have been raising money to launch a judicial review against the project. Shadow Foreign Secretary Dame Priti Patel MP said: “Keir Starmer has sold off our national security to the Chinese Communist Party with his shameful Super Embassy Surrender. Throughout his dismal premiership to date, the PM has kowtowed to Beijing at every opportunity, including over Chagos.

"And now, once again, he is giving Xi Jinping what he wants – a colossal spy hub in the heart of our capital.

“It’s clearer than ever that Starmer lacks the backbone to stand up for British interests. Only the Conservatives will keep our country safe.”

Labour MPs and those from opposition parties have voiced doubts about the proposals because of risks to underground cables and the impact on the safety implications of dissidents from Hong Kong and Xinjiang who have found sanctuary in Britain.

The plans include 208 secret rooms and a hidden chamber, according to reporting by The Telegraph.

The site would be in close proximity to data cables, said to be crucial for financial sector communications between the City of London and Canary Wharf.

Campaigners have also vowed to push ahead with their fight against plans for the embassy.

Luke de Pulford, head of the Inter-Parliamentary Alliance on China, said: “This is the wrong decision for the UK, sending all the wrong signals. Wrong for dissidents, wrong for UK national security. Our three Cs China policy is less complete, challenge and co-operate, more cover-up, cave in, and cash out."

A letter from the Ministry of Housing, Communities and Local Government published on Tuesday morning said Communities Secretary Steve Reed had granted both planning permission and listed building consent for the site.

It read: “The inspector recommended that the applications be approved and planning permission and listed building consent be granted, subject to conditions.

“For the reasons given below, the Secretary of State agrees with the inspector’s conclusions, except where stated, and agrees with her recommendations.

“He has decided to grant planning permission and listed building consent, subject to conditions.”