The remark made by Mr Robert Maund, chairman of the Scottish Campaign for National Parks, came a day after the Scottish Government revealed An Camas Mòr had been chosen as one of 11 “exemplar” low-carbon communities of the future backed by £400,000 of public money.

Cabinet Secretary for Health and Wellbeing Nicola Sturgeon said the communities would lead the way in the drive to make Scotland greener and healthier.

Mr Maund highlighted his concern that the cart was being put before the horse at the public inquiry into the Cairngorms National Park Local Plan.

It allocates land for the first phase of the new community on Rothiemurchus Estate which is expected to comprise 1,500 homes by 2028.

Mr Maund said: “I was concerned when I read about Nicola Sturgeon announcing that – it could compromise this hearing and the outcome of it.

“Here we have a Local Plan which is the subject of a hearing with nothing approved, we have a planning application for the development come in a couple of days ago and pretty much the same day the Minister stands up and says this is one of 11 schemes the government is putting £400,000 into to further the aims of the Scottish Sustainable Communities Initiative.

“I wonder if I should just go home and do some gardening and put in an application for costs.

“At every level judgements seem to be being made in advance of the Reporter’s recommendations to the park authority.

“It is as if it is a done deal and that would be very worrying for the planning process and for the democratic process.”

Mr Maund asked for “some kind of reassurance” from Reporter Jill Moody leading the hearing on An Camas Mòr that Ms Sturgeon’s announcement would not colour proceedings.

She responded: “I can say in absolute honesty that I have not a clue about any announcement by Nicola Sturgeon.”

Ms Moody said that her involvement was “absolutely objective” and she would be applying “normal planning judgement”.

The SSCI encourages the creation of places which are designed and built to last, where a high quality of life can be achieved and which demonstrate how to reduce ecological footprints.

Other winning exemplar projects include Craigmillar, Edinburgh, PARC Craigmillar; Lochgelly, Fife, Fife Council; Maryhill Locks, Glasgow, Glasgow Canal Regeneration Partnership and Tornagrain, near Inverness, Moray Estates Commenting on them, Ms Sturgeon said the Scottish Government was committed to creating an enduring legacy of high quality, distinctive new places.

“The projects selected include innovative design and building principles but they also promote environmental solutions which communities across Scotland can adopt.

“It is vital for our long term economic and social success that we create communities which provide new homes in the right place, of the right type and which contribute to reducing energy demand and impact on the environment.”

Moving Aviemore across the River Spey was first mooted at a meeting of the village’s community council in 1989.

Speaking at the public inquiry on Thursday, Mr Don McKee, the national park’s head of planning, said: “The park authority has acknowledged that An Camas Mòr is different. It is a new community in a national park and presents both a challenge and an opportunity.”

Explaining the need for the site to be allocated for housing, he said: “We are trying to respect the character of the established communities. We have reached a point where we can no longer add infinitum to the volume of housing. It is increasingly difficult to justify.”

He added that An Camas Mòr could be developed in a co-ordinated way: “This will relieve some of the pressure on other communities but we will be looking at them on an on-going basis to ensure that they remain viable.”

However, Dr Gus Jones, chairman of the Badenoch and Strathspey Conservation Group, claimed An Camas Mòr was unsustainable and would seriously damage the natural heritage. “This development within a National Scenic Area has long been viewed as unacceptable,” he said after the hearing. “Apparent ministerial support seems to be based on wishful thinking that ignores widespread opposition.

“Realistically the last thing the Cairngorms National Park needs is another flawed and over-ambitious development, especially one riding roughshod over landscape, conservation and significant community interests.

Mr Johnnie Grant, owner of Rothiemurchus Estate and applicant for the development, said An Camas Mòr was subject to an environmental impact assessment (EIA) and well-supported by planning policy.

He commented: “As there are more than 1,000 pages of detailed work to be understood and the proposal is to be tested against pages of planning policies it is very far fetched to describe it as a ‘done deal’.

“There is an immense amount of work to be carried out by a wide range of hard working, qualified and experienced public officials. “Furthermore the granting of outline consent would be only the start of the consent process.”

A Scottish Government spokesman said of the “done deal” claims: “The awarding of the SSCI status to a project by the Scottish Government is completely separate from the process of planning approval.

“The Scottish Government is supportive of the SSCI exemplar projects in their vision to create sustainable communities.

“All proposals have to go through the relevant planning process and SSCI exemplar status does not in any way influence or compromise this process or the considerations of the local authority.”