Eoin Ó Broin (Dublin Mid West, Sinn Fein) | Oireachtas source

I thank both organisations for their presentations and the research. We understand how big the piece of research is because two datasets are being compared that are not recording necessarily the same thing, which creates all sorts of challenges.

In the first round, I want to understand how the datasets have been separated. As mentioned here, characteristics have been identified in the form of geography, dwelling, household and rent. Some assumptions have been about those that may be "possible informal" and "possible formal." When I consider this matter I start with the Residential Tenancies Act, which tells us what kinds of rental properties should and should not be registered. Typically, what should not be registered is if I am not paying rent, if it is related to work, if I am renting off a family member, or if it is a licence arrangement where I am living in somebody else's principal residence and renting out a room. In my own head, I am trying to match those categories with what our guests have called "possible informal" arrangements and how they match those criteria. I am not clear how, for example, a semi-detached rural property is more likely to be "informal" than "formal". I am not saying I disagree but I want to understand. I ask Mr. Culhane to take a couple of minutes to explain in more detail, but in plain English, the methodology or criteria used to separate the 47,000 arrangements from the 25,000 because it is not immediately clear from the report itself, which is a really good piece of work,-----