Ministers have delayed a decision on whether to grant planning permission to a proposed Chinese super-embassy in London amid concerns about redacted drawings in the building's plans. The deputy prime minister, Angela Rayner, was due to make a decision on 9 September but has pushed this back to 21 October, saying more time is needed to consider the plans for the development, which would occupy a sprawling 20,000 sq metres (5 acres) at Royal Mint Court in east London.