THE state government is paying $20,000 a month for security at the now vacant Hayes prison farm.
Prisoners were relocated to the minimum security section of the Risdon Prison complex in September ahead of the planned sale of the site in the state's South but it is yet to be advertised for sale.
Yesterday, Leader of the Government in the Legislative Council Craig Farrell said the 570-hectare property was not anticipated to be advertised until early next year.
Until it is sold the government is responsible for maintaining and securing the area.
Fodder was also removed from the former prison's paddocks to reduce potential fire fuel, at a cost of less than $10,000.
The property has been valued at $2.5 million but Mr Farrell said Treasury was conducting a revaluation as it determines a reserve price.
Corrections Minister Nick McKim announced in June last year that the prison would be sold.
A real estate agent is expected to be hired to handle the sale by the end of the year.