Plans include more than doubling the size of the concourse from 910m2 to 2000m2 and building two new platforms to meet growing passenger demand.
Work will also include an iconic new transfer deck with access to every platform and links to a new footbridge.
Passenger numbers at Moor Street are expected to grow from seven million to 12 million a year by 2043, with further increases expected as a result of the Midlands Rail Hub and the arrival of HS2 in 2026.
The artists’ impressions were designed by architecture firms Grimshaw and Glenn Howells Architects who also worked together on designs for HS2’s Curzon Street Station.
Andy Street, Mayor of the West Midlands, said: “This whole area of Birmingham will be revitalised over the next few years as the world’s largest Primark opens, Curzon Street HS2 station is built, and Moor Street is transformed.
“This vision for Moor Street will not only provide a better experience for commuters but with two extra platforms, it will set the foundation for the future expansion of rail services.”