All lenders in Ireland engage on an ongoing basis with their Joint Supervisory Team (JST) on their lending and recovery activity, this would include supervision of the use of loan restructuring solutions such as split mortgages. JSTs are an effective means of cooperation between the ECB and the national supervisors in overseeing banking practices in supervised institutions. This co-operation on all supervisory issues is a core principle of the Single Supervisory Mechanism (SSM).
The Central Bank of Ireland has also informed me that it is providing input into the ECB’s review of warehoused debt - such as that which may be used as part of a mortgage split restructuring - and that this process has yet to be completed. The output from this process will be communicated to the relevant institutions through the regular supervisory channels.