The information requested by the Deputy is not routinely reported on by Sustainable Energy Authority of Ireland (SEAI) to my Department. However, Central Statistics Office, in their Domestic Building Energy Ratings Report for Quarter 2, 2022, published on 13th July 2022, shows on Table 16: "BERs weighted to National Level (2009-2022)" that 72% of homes have a BER of B3 or below, while 89% of homes have a BER of B2 or below.
The full report is available on the CSO website at: www.cso.ie/en/releasesandpublications/ep/p-dber/domesticbuildingenergyratingsquarter22022/