We reported last September that Lambeth Council has allocated funding for a masterplan for the Waterloo Station complex.
Now Grimshaw Architects have been selected to draw up proposals for the site in a £343,166 contract due to begin this autumn.
"The scope of the commission is to deliver a strategic masterplan covering Waterloo Station itself, its immediate environment, and the wider neighbourhood of Waterloo and South Bank," says the council report on the contract decision.
Funding is coming from Lambeth Council and Network Rail along with the WeAreWaterloo and South Bank business improvement districts and developers including HB Reavis and Bourne Capital.
"The brief will look at OSD [over-station development] options with an aim to deliver a substantial contribution to the redevelopment aspirations," according to the council.
"This will need to be coupled with other public and private investment options."
Previous attempts to build above the rail station have run into difficulties due to the complex network of tunnels below the mainline terminal.
Grimshaw Architects was founded by Sir Nicholas Grimshaw who designed the Waterloo International Terminal used by Eurostar until 2004 and now being converted into The Sidings shopping and leisure complex.