Navigating RdSAP10: The New Energy Assessment Framework
Introduction
On June 15, 2025, the Department for Energy Security and Net Zero (DESNZ) officially launched RdSAP10, the latest version of the reduced data standard assessment procedure. This methodology is central to producing energy performance certificates (EPCs) for existing buildings in the UK. The update marks a significant shift from RdSAP 2012, introducing more accurate, data-driven assessments and aligning with the UK’s broader decarbonisation and energy efficiency goals.
Published: September 2025
Contents
Welcome to the Quick Guide: Navigating RdSAP10 -The New Energy Assessment Framework
This article explores the key changes introduced in RdSAP10, its implications for the supply chain and housing associations, and best practices for adapting to the new framework.
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