I believe that the 100 million that is regularly quoted in the local press is the Book value as stated on the asset accounts of the five local Councils. I'm sure they are hoping for a much higher return than that, especially for a 100% sale. Given the prices paid for partial stakes in other regional airports a few years ago, a higher final sale price would seem to be reasonable, but nobody will commit to saying so given the recent ups and downs or before any official tenders have been received.
At least the Councils have put in a stipulation about keeping the current name (that was a particularly strong issue for Bradford I suspect), and are being mindfull of avoiding the Competition Commission.
PTH