Although Google already has a 67-acre campus in London, this new development would be the first wholly owned and designed Google building outside of the United States.
The 650,000 sq ft building will enable the campus to house 7,000 employees across three offices.
Sundar Pichai, CEO of Google, said: “Here in the UK, it’s clear to me that computer science has a great future with the talent, educational institutions and passion for innovation we see all around us.
“We are committed to the UK and excited to continue our investment in our new King’s Cross campus.”
Aerial view of the planned development
Google recently moved into a 380,000 sq ft development at 6 Pancras Square.
Construction on a second building that Google will lease from 2018 began earlier this year.
However, unlike the other two leased spaces, this new project is being developed from scratch on purchased land.
The mayor of London Sadiq Khan added: “Google’s commitment to London is very welcome.
“This is a global, pioneering company at the forefront of new technology – and so London, a pioneering city, and home to many of the world’s most talented and innovative people, is a great and natural choice for expansion.
“London is one the world’s leading technology hubs and investment into the capital post-Brexit remains robust, so Google’s expansion will further strengthen our city’s reputation as a global leader in digital technology.”