It ceased to be used in 1958 and most of the site was redeveloped in the 1960s, but the keep remained in Ministry of Defence hands and is now used as a regimental museum.

[3] Their creation took place as part of the Cardwell Reforms which encouraged the localisation of British military forces.

In the west tower is a rope winding gear to hoist weapons, ammunition and other stores to the upper floors.

The second floor has a display of campaign and gallantry medals as well as exhibits showing small arms and silverware.

The third floor has displays of objects and information on the recent military history of the regiment, places where it has been deployed and events in which it has taken part.