Defence Training Estates is the operating division of the Defence Infrastructure Organisation responsible for the management of the 78% of the defence estate allocated as Training Areas and Ranges. The organisation is responsible for provision of sufficient and suitable estate to support the training requirements of the British Armed Forces whilst assuring environmental management and appropriate historical and archaeological preservation.

The organisation is headquartered at the Land Warfare Centre, Warminster and has a number of regional headquarters responsible for the management of the training estate on a regional basis.

Training areas that the DTE is responsible for include

Salisbury Plain Training Area

The Salisbury Plain Training Area covers around half of Salisbury Plain and includes a number of facilities including:

Upavon
Everleigh
Tidworth
Perham Down
Bulford
Larkhill
Knook Camp
Warminster
Westdown Camp
Imber Ranges
Copehill Down - A Fighting in Built Up Areas training range

Barton Stacey Training Area

Warcop Training Area

Stanford Training Area

Stanford Training Area, known as STANTA is a large operational training area in the vicinity of Norwich used by the Operational Training and Advisory Group for pre-deployment training.