Crossrail and its development partner Cardinal Lysander are seeking planning consent for a 207,000 sq ft development above Farringdon station in London.
The six-storey building will consist of high-quality office space, with retail units at street level.
As a hub linking Crossrail, Thameslink and London Underground services, by 2018 Farringdon will be one of Britain's busiest rail stations and the developers say this build will help the area meet its growth potential.
Charles Pinchbeck of Jones Lang LaSalle, development managers for Cardinal Lysander, said: "Cardinal Lysander firmly believes in the future of Farringdon as one of London's premier business districts.
"The scheme prepared with Crossrail and other stakeholders is well-placed to capture Farringdon's potential."
When Crossrail services commence in 2018, Farringdon will become the only intersection between Crossrail and Thameslink and will directly connect with three of London's five airports. Over 140 trains per hour will be passing through the interchange.
Author: Policy Correspondent Michael Hall (firstname.lastname@example.org or 0207 202 0256)