Matt Carthy (Cavan-Monaghan, Sinn Fein) | Oireachtas source

Is there a pattern of those that are not registered? My assumption is that there would be a proportion that would be on so-called "mate's rates" or friendly arrangements where it is a family member or somebody who they know fairly well where the prospects of a complaint being made to the Residential Tenancies Board are slim in that regard. Alternatively, you are dealing with particularly vulnerable tenants who would be afraid or would not be aware of their rights that the property should be registered and, therefore, are also unlikely to make complaints. If we have a level at all of complaints being made in respect of this, it would suggest that perhaps the problem is more widespread than is acknowledged.