Supermarket giant Coles will move its head office from suburban Melbourne to a largely vacant building in the city’s Docklands, in a major boost to efforts to restore the CBD’s traditional role as a workplace.

Coles will take up 30,000 square metres vacated by insurer Medibank in the Cbus Property-owned 720 Bourke Street building near Southern Cross train station, moving out of the 800 Toorak Road building in Hawthorn East, which accommodates 5000 workers.