[4] Merri station opened on 8 October 1889, when the Inner Circle line was extended from North Fitzroy to Reservoir.

[4] The original conception of the station was to act as a major junction in a planned "North Suburban Railway System.

The Argus reported in 1887 that; "The Station at Union-street, as shown on our plan, must necessarily be the most important in the Northern System, as lines branch from this point to Preston and Whittlesea on the north ; Heidelberg, Kew, &.c., on the east; Carlton, Royal-park, North Melbourne, and Spencer-street on the south-west; Fitzroy, East Melbourne, and Flinders-street on the south; and if the alternative route is adopted, Clifton-hill, Collingwood, Richmond, and Flinders street on the south east.

",[5] while land sale plans advertised the upcoming construction of the Grand Central Junction Station".

[11] Announced as part of a $21.9 million package in the 2022/23 Victorian State Budget, Merri, alongside other stations, will receive accessibility upgrades, the installation of CCTV, and platform shelters.