It was forced to revise its original plans, which were submitted in July last year, after objections from English Heritage.
Details of the new proposal include a smaller, relocated Debenhams department store, moved from the North to the South side of Central Square, a reduction in retail space of about 14 per cent and a 20 per cent increase in the amount of residential space that the scheme will include.
Centros is now waiting for the application to be approved to begin detailed architectural plans and public consultations.
If successful, work will begin on the scheme next year and is expected to be completed by 2012.
Once complete, the extension will add a further 500,000 sq ft (46,450 sq m) of mixed-use space to the city. It will be anchored by the 97,500 sq ft (9,060 sq m) Debenhams and include a further 40 retail and leisure units.
In addition, the project will bring 179 houses and apartments – increased from the 150 planned originally – an 800-space multi-storey car park, new public areas and civic spaces and a pedestrian bridge link to the existing St Nicholas Arcades.