The scheme has been stuck on the starting blocks since 2007 but the council has passed a new master plan for the site containing one million square feet of offices, apartments and leisure facilities.
Joint developer Stanhope Schroder appointed Mace back in 2007 but a start on main construction is believed to be moving closer.
Charles Walford, director of Stanhope, said: “Our business plan for investing in Croydon is simple.
“The public transport is excellent, it is part of greater London, it is an existing place with an aging office stock and a large number of occupiers, it has a proactive and pragmatic local authority, it has huge retail potential and incumbent investors and developers that will make it happen.”