Mick Barry (Cork North Central, Solidarity) | Oireachtas source

Page 9. Other categories are overcrowded accommodation, unfit accommodation and unsuitable accommodation due to particular housing circumstances. When Professor O'Sullivan says that there are between 35,000 and 40,000 households assessed as being in these categories, he is referring to the years 2013, 2016, 2017 and 2018. It is not a cumulative figure.