Google has been granted planning permission for an office in the King’s Cross area of central London.
The 180,000-square-foot building, which is to be known as "S2", will be designed by UK firm Mossessian Architecture.
Google has already signed a 15-year lease for the 11-storey building, which will be located next to Lewis Cubitt Park, behind Central Saint Martins art college.
It will be based near the site of the firm’s defunct Google Glass store and DeepMind, its artificial intelligence start-up.
Last year, Google started renting a 365,000 square foot office in the area.
Joe Borrett, Google’s director of real estate and construction, said: "We are very excited to be moving forward with a successful planning permission for S2, a Mossessian Architecture and Argent development building.
"This achievement further cements Google’s expansion in King’s Cross and demonstrates that Google sees King’s Cross as its future home in London."
In 2013 Google announced plans for a $1.4bn UK base that was due to be completed in 2016. Construction on that project has yet to begin.
London architect Allford Hall Monaghan Morris submitted plans for this project but they were allegedly called "boring" by Google chief executive Larry Page.
The property is expected to be completed by 2017 "at the earliest".
London transport chiefs are hoping to lure Google’s self-driving cars to the capital.
Images via Mossessian Architecture