The depot is situated on the South West Main Line and is near Eastleigh station.

In 1903, the London & South Western Railway opened a 15-road locomotive shed, it closed in 1967.

[3] The main shed being a four-track dead-ended shed which was extended south in 1965, and also with a four-track through-road extension on the western side.

The second building is a one-track through road shed, for fuelling, which was opened in 1998.

[5] As of 2018, the depot is operated by Arriva TrainCare servicing CrossCountry Class 220 and 221 Voyagers.