Navigating EPC Regulations: What Landlords Need to Know (August 2025)

If you're letting property in England or Wales in 2025, understanding the latest Energy Performance Certificate (EPC) regulations isn't optional—it's essential. From evolving minimum efficiency standards to a new assessment method and an upcoming system overhaul, here’s what landlords must know today and how to prepare for tomorrow.

1. Current Legal Requirements: EPC Band E Minimum

• Right now, by law, any privately rented property must hold a valid EPC rated at least “E”, whether it's a new or existing tenancy
• Letting a property with an F or G rating, or without an EPC, is unlawful unless a valid exemption is registered

2. Proposed Changes: Aiming for EPC Band C — but Not Yet Law

• The UK government has proposed raising the minimum to EPC Band C:
• New tenancies by 2028
• All tenancies by 2030
• These changes reflect the UK’s net-zero ambitions and commitment to reducing fuel poverty.
• However, the 2025 Band C deadline has been formally dropped. As of now, only Band E remains legally enforced.

3. Major Update: EPC Assessment Method Overhaul (RdSAP 10) Starts June 2025

• From 15 June 2025, all EPC assessments use the new RdSAP 10 methodology.
• RdSAP 10 requires detailed evidence—like manufacturer specs for heating systems, documented glazing types, and records of insulation — to achieve an accurate rating.
• This change means EPC ratings now depend more heavily on proof of improvements, so keeping documentation is critical.

4. Why It Matters for Landlords Today

• EPCs rated B‑G may drop in ranking under RdSAP 10 without evidence.
• Higher-rated EPCs (C or above) can justify better rent and faster lets
• Future-Proofing
• Upgrades now will help align with proposed future legislation.
• Avoiding Fines
• Staying compliant avoids penalties—even if Band C isn’t mandatory yet.

5. Practical Steps for Landlords

• Check your current EPC rating and expiry date.
• Gather documentation of any upgrades (e.g. boiler receipts, insulation invoices, smart controls).
• Consider low-cost upgrades like LED lighting or draft-proofing — they can boost scores and tenant interest.
• Plan for Band C: even though not law yet, being proactive positions you ahead of future regulation.
• Explore grants and schemes, such as the Boiler Upgrade Scheme or local authority funding.
• In Summary

As of August 2025, landlords must comply with the EPC Band E requirement and familiarise themselves with the new RdSAP 10 assessment process. Although Band C mandates are still proposals, preparing your property now not only improves tenant appeal and reduces voids, but also puts you ahead of the curve when stricter standards are introduced.

Need help auditing your current EPC, documenting upgrades, or planning for future changes? Get in touch with Sagoos, and we’ll help you stay compliant and competitive in a greener lettings landscape.