An English court on Friday threw out a challenge against planning permission for a Chinese "mega" embassy in central London, but residents seeking to block the contentious project vowed to fight on. The Royal Mint Court Residents Association on Friday said it would apply for permission to appeal, hoping its case would reach the UK Supreme Court. The 20,000-square-metre (235,000-square-foot) site is set to become the largest embassy complex in the UK by area. This would make it London's largest embassy, ahead of the new 12-storey US home around 5.1 kilometres (3.2 miles) to the southwest. It would also make it the largest Chinese embassy in Western Europe, and likely the largest embassy of any country in the region, by floor space.