RDSAP 10 in Northern Ireland: The New Standard for EPCs from June 2025
EPCs Are Changing in Northern Ireland – What RDSAP 10 Means for Your Property From June 2025, Energy Performance Certificates (EPCs) in Northern Ireland will be calculated using the updated RDSAP 10 methodology. This revised assessment standard introduces more accurate modelling, updated fuel data, and enhanced treatment of modern technologies — but most notably, it…









