New EPCs are planned for the second half of 2027
Government plans to replace SAP and RdSAP, the methods currently used to produce domestic EPCs, with the new Home Energy Model (HEM). Reformed EPCs are planned for the second half of 2027. No exact launch date has been confirmed.
Reformed EPCs are expected to show four headline measures:
- Fabric performance — how well the building keeps heat in.
- Heating system — the efficiency and type of heating.
- Smart readiness — the home's ability to use energy flexibly.
- Energy cost — the expected cost of running the home.
The announced 2030 standard for private rented homes
Government has announced a higher minimum standard for qualifying private rented homes in England and Wales, planned from 1 October 2030, subject to the necessary legislation and final guidance.
Under the announced approach, a property would need fabric performance at C, plus either the heating system or the smart readiness measure at C — subject to the final band design.
Already rated C? The transition matters
Under the announced transition, a property with an EPC at C or above on the existing Energy Efficiency Rating, lodged before 1 October 2029, would be recognised until that EPC expires or is replaced.
The existing Energy Efficiency Rating may also appear on reformed EPCs during the transition, so the HEM launch in 2027 is not the cut-off — you do not need to book before 2027 to benefit.
EPCs are generally valid for 10 years. A new EPC does not guarantee a particular rating, a C, or ten years of future compliance.
Why assess your property now
- Know your property's current performance and the recommendations for improving it.
- Record evidenced improvements such as insulation, glazing and heating upgrades.
- Allow time to budget for and plan suitable works.
- Understand how the C transition could apply to your property.
If your property is below C, it may require improvements and a reassessment to show them.
Already have a valid C? Check the rating, expiry date and current condition of the property first — renewal may not be needed immediately. You can look up any EPC free on the official EPC register, or use our guide to checking an EPC.
Frequently asked questions
When will the new EPCs be introduced?
Government plans to introduce reformed domestic EPCs, based on the new Home Energy Model, in the second half of 2027. No exact launch date has been confirmed.
Does my current EPC expire in 2027?
No. EPCs are generally valid for 10 years from the date they are lodged. The launch of reformed EPCs does not, in itself, cancel existing certificates.
Does booking an EPC guarantee a C rating?
No. An EPC records the property's actual condition on the day of the assessment. A new EPC does not guarantee a particular rating, a C, or ten years of future compliance.
Must I replace my gas boiler?
There is no blanket requirement to replace a gas boiler arising from EPC reform. Under the announced private rental route, after meeting the fabric performance standard a property can meet the higher standard through either the heating system measure or the smart readiness measure, subject to final band design.
Do I need a new assessment if I already have a valid EPC?
Not necessarily. Check your current rating, expiry date and whether the property has changed first. If your EPC is valid and still reflects the property, renewal may not be needed immediately. Ask us about your circumstances before booking.
Sources
- GOV.UK — Reforms to the Energy Performance of Buildings regime
- GOV.UK — Improving the energy performance of privately rented homes: government response
- UK Parliament — Written question 22180
- GOV.UK — Energy Performance Certificates when selling a home
Future requirements are subject to legislation and final guidance and apply to qualifying private rented homes in England and Wales. Last reviewed 30 October 2026.