Homeowners: New EPC Rules Now in Force

If you're thinking of selling or letting a property , there’s an important update you need to know new rules governing Energy Performance Certificates (EPCs) have just come into effect.

What is an EPC?

An Energy Performance Certificate (EPC) shows how energy efficient a property is. The certificate includes:

• A rating from A (most efficient) to G (least efficient)
• Information on energy use and estimated energy costs
• Suggestions for improving energy efficiency

EPCs are used to help buyers and tenants compare the energy efficiency of different homes, making it easier to choose a cost-effective and eco-friendly property.

When Do You Need an EPC?

If you're planning to sell or rent out your property, the law requires you to have a valid EPC in place before you start marketing it.

• EPCs are valid for 10 years.
• If your EPC has expired (or you’ve never had one), you’ll need a new one to list your home

What is New? 

The new rules came into force earlier this month and affect how EPCs are prepared. Specifically, they update the methodology used by domestic energy assessors—the professionals who inspect your home and generate the certificate.

These updates are part of something called RdSAP 10 (Reduced Data Standard Assessment Procedure), which introduces more detailed checks. Here's what assessors will now do:

• Inspect insulation and ventilation more thoroughly
• Evaluate the efficiency of heating and hot water systems
• Examine double glazing and energy-saving lighting
• Request supporting documents instead of relying on assumptions

What Could This Mean for Your Property?

Experts believe these changes could shift the EPC rating of some properties—either up or down—depending on the condition and supporting evidence available.

Other potential impacts:

• More work for energy assessors, which may increase the cost of getting an EPC
• A more accurate rating, which could help or hinder your marketing efforts depending on the home’s energy efficiency

What Should You Do Now?

• If you have a valid EPC: You’re fine for now. You won’t be affected until it expires, or you need to update it.
• If you need a new EPC: Don’t worry. The energy assessor will guide you through the new process. Just be prepared to provide any documents or information they request, such as insulation certificates or heating system details.

We're Here to Help

At David Astrburys, we stay up to date with all regulatory changes to ensure your property transaction is legal, and stress-free.

Need help ordering a new EPC or understanding how these changes might affect your property value?

Contact our team today—we’re always happy to advise.