The latest European Commission report on Ireland is available here. Lots of interesting stuff in it. One bit that caught my eye is a discussion of an internal report prepared by the Central Bank
A second report covering the use of certain types of credit limits, from a prudential point of view, is at an early stage of development. This would take under consideration policy tools including Mortgage Insurance Guarantees and Loan-to-Value (LTV) limits, as well as potentially fixing all interest rates for certain products such as mortgages.
It’s not obvious to me that banning variable rate mortgages is a good idea, either from the point of view of consumers or from the point of view of international financial institions considering coming into Ireland to offer mortgages. While fixed-rate mortgages do offer increased stability, the premium required is quite large so that financing costs would be higher on average (and house prices probably that bit lower as a result).
There are various reasons why fixed-rate mortgages are not common in Ireland or the UK (this 2004 report on the UK mortgage market by David Miles discusses this issue in detail). But banning variable rate mortgages seems to be an extreme proposal.