A PARISH council has written to all 213 town and parish councils in the county branding Cornwall Council an "emerging dictatorship".
The letter from Chacewater Parish Council is a call to action, criticising the unitary authority's communication, savings plans, planning policy, highly paid officers and arms length organisations.
The highly-charged letter, which was sent three weeks ago, has prompted a robust response from Cornwall Council's leader John Pollard.
Almost 40 parish or town councils – one in five – have responded giving their backing to Chacewater's demands for some degree of change. Two declined to be involved.
The letter levels criticism that there has been a blatant lack of communication and support from 'One Cornwall' and a lack of cost savings since the amalgamation of the former district and county councils took place.
It slams some officers' salaries as "far exceeding" that of the Prime Minister" and hits out at planning decisions.
Cornwall Council is currently imposing a number of cuts to services aimed at meeting a shortfall in government funding.
The letter from Chacewater Parish Council reads: "Planning decisions should be free of politics, reflect the wishes of the communities and NOT be used as a carrot."
It goes on to brand the council's contract with Cormac "inefficient" and hits out at the role of officers in the council's business arm, demanding "more clarity as to where the public purse is being spent".
Chacewater Parish Council said it was receiving responses on a daily basis but was yet to decide its next move.
Cornwall Council leader John Pollard has refuted many of the arguments and has written back to all councils saying it was wrong to claim the council had not made savings, citing a workforce slashed from 22,000 to 12,000 in five years.
"To put a figure on this, we have delivered £15.6 million of year-on-year savings directly from the formation of the unitary council," he wrote.
He also said only five per cent of planning decisions were made contrary to views of the local parish councils, praised Cormac and called the comments regarding its employees and those of the Cornwall Development Company "unfair".
St Austell Bay Parish Council is backing much of the sentiment written by Chacewater Parish Council.
Chairman Bill Leach said: "St Austell Bay Parish Council shares a number of the concerns expressed. We could add many more, like the failure of officers to respond to letters or e-mails, the non-transparency of the planning process, the lack of understanding of 'localism', the failure to realise that devolution is not devolution unless it is accompanied by funding – I could go on."