Queensland's crime and corruption watchdog has opened an investigation into Gold Coast City Council.

The Crime and Corruption Commission released a statement on Friday afternoon saying it was investigating development decisions made by some GCC councillors.

The Gold Coast City Council is at the centre of a CCC probe. Credit:Fairfax Media - Robert Shakespeare

"The allegations broadly involve possible conflicts of interests relating to decisions on a range of development matters on the Gold Coast," the statement read.

"The CCC referred some matters in September 2017 to the then Department of Local Government, Infrastructure and Planning to investigate subject to the CCC’s monitoring role. The CCC has since considered an interim report from the Department.

"The allegations, which raise a reasonable suspicion of corrupt conduct, will now be investigated by the CCC."

The CCC said it would not comment further on specific developments or decisions.