People affected by the proposed airport at Redhill Aerodrome were shown a map on which “their properties appear to be part of an airfield”.

Farms, businesses, homes and roads would be bulldozed to make way for the development – a fact that was discovered with just four weeks left of consultation.

Residents are outraged the map was made available several months after the latest proposal was first mooted and four weeks before a Government consultation on air transport is due to close.

The map shows the 2,000metre runway and surrounding tarmac cutting through greenbelt and roads from south of the Whitebushes estate, to the M23.

But developer Redhill Aerodrome Ventures (RAV) has played down the controversy, saying anyone affected would be compensated handsomely.

Jan Cook, a Salfords and Sidlow parish councillor, who lives in Kings Mill Lane, said: “The map which I had seen for the first time included my neighbour’s property, which she had also been unaware of. They [RAV] are intending to appropriate some of the properties despite the people who own them giving no indication they are going to sell.

“It’s typical I think of the way the whole scheme has been treated, that a matter of four weeks before the closing date for observations residents suddenly discover that their properties appear to be part of an airfield.” Pam Topliss, of Copsleigh Avenue in Salfords spoke out on behalf of her neighbours at a public inquiry in 1996, when RAV last put in a plan.

Her property is not under the development, but she is worried about “unbearable noise” and that house prices might plummet.

Angela Green, a member of campaign group Keep Redhill Airfield Green (KRAG), lives at the junction of Kings Mill Lane and Kings Cross Lane, South Nutfield.

She said: “The estate agents are trying to play it down because they think it's unlikely.

“We considered moving within the village and from our point of view we decided it wasn’t going to be the best time to sell our house.” Jon Cousens, director of external relations for RAV, confirmed that Dean Farm, off Mason's Bridge Road – also under the development – would go. He said: “If the project goes ahead Dean Farm would have to disappear and the road would have to be dealt with some way or another.

“Not only are there statutory rights to compensation the developers have said they would be extremely generous to anyone affected.” He said many business tenants on the airfield who wanted to stay could do so, though some would no longer be able to operate. For more information on the proposal go to www.londonredhill.com