My Department does not keep data on the number of vacant or void local authority houses at any point in time. However, statistics in relation to social housing are compiled by the National Oversight and Audit Commission (NOAC) in its annual reports on Performance Indicators in Local Authorities. These statistics are set out by local authority and include the percentage of total local authority dwellings that were vacant, with the most recent report relating to 2017. This report is available on the NOAC website at the following link: http://noac.ie/wp-content/uploads/2018/09/NOAC-Performance-Indicators-Report-2017.pdf.