Ladyhall Farm has been given permission to increase its pitches for static caravans from five to ten, and owner Brian Byers says there is plenty of demand.
Mr Byers said: “I’ve got waiting lists.”
Explaining the appeal of the site, he added: “It’s the tranquillity of it, and the bird watchers and the wildfowlers.
“There’s just a general demand for it, and I probably could have put on double the capacity if I could’ve got planning for them, but I think this will be as far as I go now.”
And visitors come from far and wide to enjoy the tranquillity, natural wildlife and fantastic views that Ruthwell offers.
Mr Byers said: “They come from Cornwall, the north east, the Midlands, London, and we even have people coming from Italy.”
He explains that the existing site is a mix of let pitches and owners on the pitches.
Mr Byers notes that visitors to the area help boost local trade, eating out, shopping locally and exploring attractions.
He said: “It’s always helpful to bring a bit more trade to the locality.
“It works both ways – it works for summer visitors and it works for wildfowlers in the winter as well.”
Mr Bryers added: “The wildfowling in the winter on a good day cannot be bought anywhere.
“You would pay a fortune for it if you could guarantee conditions, and in the summer it’s just peace and quiet.”
Mr Byers expects creation of the new pitches to begin within the next two or three months, while the work also calls for the installation of a septic tank and formation of an access track.