RdSAP 10 is the new way of doing EPCs in the UK. It starts in June 2025. It’s more detailed, more accurate, and includes new technology. This means better energy ratings—but also more work for assessors. 1. What is RdSAP 10? RdSAP stands for Reduced Data Standard Assessment Procedure. It’s the method used for EPCs… Continue reading RdSAP 10: Full Guide to the 2025 EPC Changes