A notice was placed on the caravan more than 12 months ago asking the owner to remove it.
The society tried a number of ways to dispose of the caravan in recent weeks and finally agreed to sell it to a private buyer.
After expenses, the society made £40 from the sale.
The caravan was carafeully removed from the site in an operation taking almost two hours, taking care not to damage fencing and guttering which has been installed since the caravan was put in place.