Some facts about the early Snow Hill station deserve to be highlighted and Derek Harrisons' book on the station did not help.
As previously stated the station began as a joint station between two companies that had been taken over by the Great Western Railway and so at the time of opening it was Great Western-owned, but the opening of this station was in two parts. The first was the line to Oxford and the other later to Wolverhampton. The later second date was in 1854 and occupied a rectangular plot of land bounded by Monmouth Street, Livery Street, Great Charles Street, and Snow Hill. A principal entrance was on the Livery Street side.
The track was mixed gauge, broad gauge (7ft 0 1/4 in) and standard gauge (4ft 8 1/2 in) and there were two main platforms with a shorter
platform (between them) which seem to have been reached by a board crossing. The crossing over Great Charles Street was done through three iron bridges (side by side) designed by I K Brunel which carried the tracks northwards.
Following the removal of the broad gauge, the Great Western Railway arranged for the reconstruction of the station creating a station with a longer overall roof. Derek Harrison has said that the original station building being sent to Didcot needs to be questioned with particular regard to what, if anything was removed in that way.
The station that most people remember was that made later by the Great Western which was part of of an extensible reconstruction at the start of the twentieth century where the track was quadrupled from Snow Hill to Handsworth, Moor Street Station was made and from Moor Street, the track was quadrupled as far as Olton. The North Warwickshire line was also made from Tyseley through to Bearley to meet up with the existing branch to Stratford upon Avon. The original locomotive sheds at Bordesley were replaced by the new depot at Tyseley. Post First World War 1 the GWR made further quadrupling work from Olton to Lapworth.