Detailed plans for the £600 million development of Birmingham’s New Street station have been submitted to the city council.
Outline consent was granted in 2007 for the scheme, which will double passenger capacity. The proposed concourse is three-and-a-half times bigger than the present structure.
The first phase, which will see the new concourse built on a former car park next door, is expected to open in 2012. Work to clear the site began late last year.
In phase two, the existing concourse will be closed for redevelopment. The entire project is expected to be completed in 2015.
Route director for Network Rail Jo Kaye, said: “Birmingham is home to world-class design, so we have to deliver a station that is visionary and adds to this great architectural heritage.
“Our plans for New Street will further enhance the growing reputation of Birmingham and improve the travelling experience for the millions of passengers who use the station every year.”