More detailed information for property assessments.
The release date for RdSAP 10 is set for June 15, 2025. This marks the first major update to the residential EPC methodology in four years. The update brings numerous changes, including the requirement for assessors to measure all windows, additional options for roof rooms, a new age band for properties built from 2023 onwards, and the addition of the Isle of Man as a region. Additionally, assessors will be able to account for PV diverters and battery storage when present in the property. More details here.