Here are the estimates from Davy Research for the different types of property loans held by Irish banks. (Access, however, limited to customers of Davy.)
Their summary: “Gauging the appropriate haircut is a function not just of the asset value; rather, it also hinges on the original loan to value, the vintage of the loan and the provisions made. Our analysis suggests a range of mark to market haircuts: from as low as 5% for loans backed by UK commercial investment property to 44% in the case of loans backed solely by Irish development land.”
Bottom line in terms of state ownership: The base case delivers ownership by the state of 78 percent for AIB and 69 percent for Bank of Ireland.