Hi Ian,
You question needs reformulating. A mortgage secured against a UK property is a UK mortgage by definition, so the scenario you are asking about is impossible.
Do you want to know if it is possible to borrow in Euros, with Euro-zone interest rates, against a property in the UK? If so then yes, though it’s far from common. I know some private banks offer this, though I couldn’t tell you which ones, and they only do so for large sums or people with city-type salaries in Euros. However you never know, banks like Lloyds and Barclays might offer something along these lines. I know that Lloys allows you to take a Stirling variable interest rate mortgage against Spanish property, which is simply the reverse of a Euro ECB rate mortgage on a UK property.
Mark
