Defence Infrastructure Organisation

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What Defence Infrastructure Organisation does

The Defence Infrastructure Organisation (DIO) is the estate expert for defence, supporting the armed forces to enable military capability by planning, building, maintaining, and servicing infrastructure.

DIO is part of the Ministry of Defence.

Read more about what we do

Documents

Policy papers and consultations

See all policy papers and consultations

Transparency and freedom of information releases

See all transparency and freedom of information releases

Contact DIO

Office address

St George’s House
Defence Infrastructure Organisation Head Office
DMS Whittington
Lichfield
Staffordshire
WS14 9PY
B75 7RL
United Kingdom

Housing enquiries: calling from UK

0800 707 6000

Housing allocation enquiries: calling from overseas

+44 151 728 1630

Security Service Group (SSG): SSG related enquiries only

01793 314007

Security Services Group: security furniture enquiries

0845 8388382

Ministry of Defence Press Office

0207 218 7907

Make an FOI request

  1. Read about the Freedom of Information (FOI) Act and how to make a request.
  2. Check our previous releases to see if we’ve already answered your question.
  3. Make a new request by contacting us using the details below.

Freedom of Information Act and Environmental Information Regulation requests

MOD Information Rights Team
Ground floor, zone D
Main Building
Whitehall
London
SW1A 2HB
United Kingdom

Not to be used for requesting your own information (Subject Access Request), service records including for deceased relatives, or pension enquiries.

Corporate information

Jobs and contracts