A campaign will be launched today urging government action on the Hunter Development Corporation's Newcastle City Centre Renewal Report.

The urban renewal plan, which embraces investment for tertiary education facilities in the city's business district, an upgraded legal precinct and a new transport system, was released in May and calls for state and federal government finance.

Organisations including Hunter Business Chamber, Hunter Advantage, Newcastle Trades Hall Council, Newcastle Alliance and the Property Council are throwing their support behind the "Fix Our City" campaign.

They have called for the immediate implementation of HDC's recommendations after a Hunter Valley Research Foundation survey revealed 93 per cent of residents backed a program of renewal for the city centre.

Hunter Business Chamber chief executive Peter Shinnick said developers were ready to invest in the city but were waiting for the Government to move on the plan.

"The community has provided a clear message to the NSW Government that it wants support for the HDC report, a report it commissioned," Mr Shinnick said.

"With 93 per cent of the public agreeing with the need for change, now is the time to see this being accepted by the NSW Government."

Mr Shinnick said if the Government did not endorse the HDC report developers would walk away and the region would "luck out".

Hunter Advantage spokesman Newcastle developer Jeff McCloy said it was imperative government action was taken now to stop the decay of "our great city."

"We have a blueprint for positive change in the form of the report, now we need a commitment to move," Mr McCloy said.

He said a Newcastle City Council resolution had endorsed the Hunter Development Corporation report.

"Let's get it done," Mr McCloy said.