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Defence Infrastructure Organisation

At the Defence Infrastructure Organisation (DIO) we manage the military estate, including accommodation for Service personnel and their families, on behalf of the MOD.

The DIO was formed on 1 April 2011, when the former Defence Estates organisation was brought together with other infrastructure functions in the MOD to form a single organisation.

This website is currently being updated in line with these changes.

More Info

DIO News

Culdrose DIO delivers final bed space at Culdrose

The Defence Infrastructure Organisation (DIO) has delivered the final cabin in a major project to... 10 Aug 12

Private Harry Buxton excavates the body of an Anglo-Saxon woman Soldiers on Salisbury Plain celebrate historical discovery

An award-winning project using archaeology to aid the recovery of soldiers injured on Operation... 6 Aug 12

Outside Sarawak gym DIO delivers critical rehabilitation facilities to Royal Marines

The Defence Infrastructure Organisation (DIO) has completed a new Physical and Remedial Training... 20 Jul 12

MOD kick-starts tendering for east region construction projects

19 Jul 12

Rehabilitation through archaeology project wins new award

12 Jul 12

More DIO News

Our Publications

Key documents

DIOlogue is the corporate magazine of the Defence Infrastructure Organisation.
JSP 315 Services Accommodation Code: Volume 1
JSP 315 sets out the official standards for MOD buildings, accommodation, offices and physical training grounds
DIO provides answers to Frequently Asked Questions (FAQs) relating to the Next Generation Estate Contracts (NGEC) programme
JSP 434 Defence Construction in the Built Environment
JSP 434 provides comprehensive 'best practice' guidance on all aspects of the delivery of Defence construction in the built environment

More Publications

The MOD Estate is made up of:

  • The Built Estate: barracks, naval bases,

    depots and aircraft hangars.

  • The Housing Estate: around  50,000 Service family homes.
  • The Defence Training Estate (DTE):16 major armed forces training areas and 104 other training areas and ranges


DIO Headquarters

Kingston Road

Sutton Coldfield

West Midlands

B75 7RL

General Enquiries

Telephone: 0121 311 2140
Email: DIO Corporate Services    

Housing allocation enquiries Freephone (UK only): 0800 169 6322
Standard call rate (overseas): +44 1904 418000
Military: 94510 8000
Other housing enquiries

Security Services Group
General Enquiries: 01793 314007
Security Furniture: 0845 8388382 

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