Amazon is doubling down on its commitment to the UK, increasing its already huge new office by more than a third and creating hundreds more highly skilled tech jobs.
The US tech giant will take up the entire new Principal Place development in the heart of London, taking all 600,00 sq ft of the building for its new headquarters.
The additional space will be home to 900 research and development staff, double the number it had originally planned. They will largely be focused on developing Amazon's Prime Video streaming service and will include engineers, user interface experts, data analysts and graphic designers.
"This is great news for Britain - Amazon's increased investment in developing cutting-edge technology in London is another vote of confidence in the UK as a world-leading centre of creativity and innovation," said digital minister Matt Hancock.
The new HQ which opens today is located between Liverpool Street and Shoreditch High Street.
Amazon's UK boss Doug Gurr told City A.M. London remained a great place for recruiting talent with "plenty" of applications for every job they advertise despite the uncertainty of Brexit.
By the end of the year, the firm will employ more than 1,500 people in highly skilled tech roles with others based in research centres in Cambridge - where drone delivery technology is being developed - and Edinburgh.
Across the business, it is hiring more than 5,000 more staff this year which is expected to bring total employees to 24,000 in the UK.