The original station had just a single platform with two tracks which were covered by a large train shed. A second platform and train shed was added in 1874 and two sidings were laid to give a total of four tracks between the platforms. The LSWR became a part of the Southern Railway (SR) in 1923 and two years later the eastbound platform was lengthened from to , taking it beyond the New North Road bridge at the east end of the station. A fire damaged the original wooden buildings on the westbound platform in 1927 and work on rebuilding the station started in 1931. The train sheds were demolished and new brick buildings were officially opened on 1 July 1933 when the station was renamed 'Exeter Central'. At this time there were four platform tracks – east-facing terminal platforms 1 and 4 and through platforms 2 and 3 – and two additional through lines in the centre of the station.