On 5 December 2007, the Government confirmed that Cornwall was one of five councils that would move to unitary status. This was enacted by statutory instrument as part of the 2009 structural changes to local government in England, The changes took effect on 1 April 2009. On that date the six districts and Cornwall County Council were abolished and were replaced by Cornwall Council.
when did cornwall council became a unitary authority
1 April 2009