The New EPC Rules 2025 have now come into effect, bringing important updates to how Energy Performance Certificates (EPCs) are assessed and issued. If you’re planning to sell or let your property, it’s essential to understand these changes and how they might affect your home’s rating and compliance. Here’s everything you need to know.
What Is an EPC and Why It Matters in 2025
An Energy Performance Certificate (EPC) gives a property an energy efficiency rating from A (most efficient) to G (least efficient). It provides a clear breakdown of how energy-efficient your home is and estimates its typical energy costs.
EPCs take into account several factors, such as:
- Insulation quality
- Heating and hot water systems
- Energy-saving lighting
- Double glazing
- Ventilation
These details help buyers and tenants evaluate the energy performance of a home. The New EPC Rules 2025 aim to improve the accuracy of these evaluations and better reflect real-world performance.
When Do You Need an Energy Performance Certificate?
If you’re selling or renting out your home, you are legally required to have a valid EPC in place before the property goes on the market. EPCs are valid for 10 years. If your certificate has expired, or if the property has never had one, you’ll need to order a new one.
What the New EPC Rules 2025 Change for Homeowners
Under the New EPC Rules 2025, energy assessors now use a revised methodology called RdSAP 10 (Reduced Data Standard Assessment Procedure).
This updated approach requires assessors to:
- Collect more detailed data
- Request supporting documents (e.g. insulation certificates)
- Assess heating, ventilation, glazing and hot water systems more rigorously
These updates help improve the accuracy and reliability of EPC results and reduce reliance on estimates.
Key Changes to EPC Assessments Under the 2025 Rules
Some changes may not be visible to the homeowner, but the New EPC Rules 2025 shift how properties are rated. Instead of default assumptions, assessors now check actual specifications and may need you to supply documentation.
Will the New EPC Rules 2025 Affect Your Rating?
With the New EPC Rules 2025, it’s possible your property’s rating may change, either up or down. This could influence market appeal, particularly for landlords or sellers.
The new process is also more detailed, which could result in slightly higher costs for obtaining a new EPC.
Energy Saving Trust: Home Efficiency Advice
Preparing to Sell or Let Under the New EPC Standards
If you already have a valid EPC, there’s nothing to worry about yet. But if you need a new one to list your property, be ready to:
- Book a qualified assessor
- Provide documents like boiler records or insulation certificates
- Allow a more thorough inspection than before
The New EPC Rules mean assessors will take care of the detail, you just need to cooperate with the updated process.
Need Help?
If you’re planning to sell your home and want to understand how the New EPC Rules 2025 may affect your property, we’re here to guide you.
Get in touch with us for expert advice and a free property valuation—no obligation.
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