Queensland's Crime and Corruption Commission (CCC) has declared it will not pursue corruption charges against any elected official from Gold Coast City Council.

Key points: The CCC has been investigating the council since August 2018

The CCC has been investigating the council since August 2018 It says it has found no evidence to support corruption allegations

It says it has found no evidence to support corruption allegations The CCC recommended the council strengthen its anti-corruption policies

The announcement follows a 16-month investigation by the CCC into corruption allegations aimed at senior staff and councillors.

However, the corruption watchdog stopped short of exonerating Mayor Tom Tate, who has been referred to the Office of the Independent Assessor (OIA).

"As a result of the operation, some matters relating to the alleged failure of the Gold Coast City Council Mayor to meet obligations under legislation governing local governments and a GCCC policy have subsequently been referred to the Office of the Independent Assessor (OIA) for further consideration," a CCC statement said.

Since August 2018, the CCC's Operation Yabber has been investigating allegations of corrupt conduct by councillors and senior employees.

They included an alleged failure to declare conflicts of interest across issues involving numerous councillors and staff, gifts and the suggestion that benefits were received by councillors from proposal applicants and misusing council funds.

"The CCC interviewed a number of people who had publicly and privately raised allegations of corrupt conduct relating to the GCCC," the CCC said.

The CCC urged the council to strengthen its corruption prevention framework. ( Supplied: Gold Coast City Council )

"Based on the interviews and an examination of material not readily available to the public, the CCC has not identified any evidence to support allegations of corrupt conduct as defined in the Crime and Corruption Act 2001 that would meet the threshold for criminal prosecution.

"On that basis, the CCC will not take action against any elected official from the GCCC."

The CCC statement said a letter had been written to council CEO Dale Dixon, recommending he consider disciplinary action against one staff member.

The statement also urged the council to strengthen its corruption prevention framework.

"The CCC has recommended the GCCC make improvements to a range of policies and their staff code of conduct to clarify the expectations of council employees," the statement said.

Details of the CCC's investigation will be released in a report expected to be published next month.

The ABC has approached the council for comment.