Major EPC Law Change for Landlords: What You Need to Know from June 2025

From 15th June 2025, significant changes to the Energy Performance Certificate (EPC) system will come into effect across the UK. The introduction of RdSAP 10, an updated methodology for assessing energy efficiency in existing homes, marks the most substantial overhaul in over a decade. This EPC law change aims to provide more accurate and detailed assessments, reflecting how homes are used and guiding improvements in energy efficiency.

Understanding RdSAP 10

The Reduced Data Standard Assessment Procedure (RdSAP) is the framework used to produce EPCs for existing dwellings. The new version, RdSAP 10, incorporates expanded data collection and revised assumptions to enhance the accuracy of energy assessments.

Key updates include:

●      Detailed Data Collection: Assessors will now gather more specific information, such as the types and conditions of glazing, the efficiency of the heating system and the presence of smart heating controls.

●      Evidence-Based Improvements: Only home improvements with verifiable evidence, like insulation or new windows, will be reflected in the EPC rating.

These enhancements aim to provide a more realistic picture of a property’s energy performance, benefiting tenants seeking energy-efficient homes and allowing landlords to highlight their property’s improvements. However, there are some potential challenges for landlords.

Implications for Landlords

The updated EPC assessments will require landlords to be more proactive in managing their property’s energy efficiency documentation.

Considerations include:

●      Documentation Readiness: Ensure all energy-related upgrades are well-documented. Without proper evidence, default assumptions may lower the property’s EPC rating.

●      Potential for Increased Costs: The more detailed assessments may lead to higher upfront costs for EPC evaluations.

●      Impact on Property Value and Letting: Accurate EPCs can influence tenant decisions and property valuations, making it crucial for landlords to maintain up-to-date and accurate certificates.

Future Compliance Deadlines

Looking ahead, the government has proposed that all private rented sector (PRS) homes must meet a minimum energy efficiency standard by the end of 2033, with new tenancies expected to comply from 2028. These proposals are part of broader efforts to improve the energy efficiency of the housing stock and reduce carbon emissions.

Preparing for the Changes

To navigate the upcoming EPC changes effectively:

●      Review Current EPCs: Assess your property’s current energy performance and identify areas for improvement.

●      Gather Documentation: Compile evidence of all energy efficiency upgrades, such as invoices, product specifications and installation certificates.

●      Consult Professionals: Engage with accredited energy assessors to understand how the new methodology may affect your property’s rating.

●      Plan for Upgrades: Consider investing in energy efficiency improvements to enhance your property’s EPC rating and appeal to tenants.

Ready For the EPC Law Change?

By staying informed and proactive, you can ensure compliance with the new EPC law change and contribute to the broader goal of improving energy efficiency in the UK’s housing sector. For help with legal compliance, our full-service lettings management package includes ensuring your tenancies meet the legal requirements, in addition to carrying out rent collections, maintenance and tenancy administration on your behalf. Call us today to find out how we can help, on 0208 5757630.