Legacy railway station was built close to the location of the disused Legacy Colliery when the Great Western Railway built the Rhos Branch in 1901.
When the railway was built to Rhosllanerchrugog in 1901, it linked up with the unused Legacy Colliery Branch.
Legacy station was opened on 1 October 1901 by the Great Western Railway.
It initially had a ground level signal box but it was later replaced in 1905 with a new one to the west.
The goods siding saw additional traffic in 1934 with the building of the water tower and service depot of the Wrexham and East Denbighshire Water Company, which remains to this day.