English Heritage has thrown a £330,000 lifeline to World War 2 code breaking site Bletchley Park.
The grant will be used to complete urgent roof works at Bletchley Park. Bletchley may also get another £600,000 over three years from English Heritage and Milton Keynes Borough Council to help repair its rapidly deteriorating buildings.
The roof work is expected to be completed by next March, and will help protect original roof beams and the internal plaster of the mansion.
In July, about 100 UK academics signed a letter to The Times condemning the neglect at Bletchley.
IBM and security firm PGP have also made donations to the National Museum of Computing which is located at Bletchley. A number of celebrities, including ex-James Bond star Roger Moore, have also called for Bletchley to be saved.