Oct 19 (Reuters) - Mirvac Group MGR.AX
* Deloitte signs afl at 477 collins st, melbourne-mgr.ax
* Deloitte signs agreement for lease at 477 collins street, melbourne
* Deloitte has committed to 22,000 square metres of office space across 12 floors for 12 years, commencing in 2h20. Source text for Eikon: ID:nASX721dtq Further company coverage: MGR.AX