Whether you’re constructing a new property or selling an existing one, Energy Performance Certificates (EPCs) play a key role in demonstrating a building’s energy efficiency. But the standards for new builds and existing homes differ significantly.
✅ EPC Requirements for New Builds
New build properties in the UK must achieve a minimum EPC rating of B or above in most cases. This is due to strict Part L Building Regulations (concerning energy performance), which mandate:
Highly efficient insulation and glazing
Low-carbon heating systems like heat pumps
Energy-efficient lighting
Use of renewable energy (e.g., solar panels) is often encouraged or required
Builders are required to submit SAP (Standard Assessment Procedure) calculations and achieve a high rating before a completion certificate is issued.
🏘️ EPC Requirements for Existing Homes
Existing homes must have a valid EPC when:
Being sold or rented
Undergoing major refurbishment
Applying for certain grants or funding
The legal minimum for rental properties in England and Wales is currently an E rating. However, the UK government has proposed that this minimum could be raised to a C rating by 2028 for new tenancies (subject to confirmation).
Key Differences
| Feature | New Builds | Existing Homes |
|---|---|---|
| Minimum EPC Rating | B (or higher) | E (rental); none for sales, but recommended |
| Assessed Against | SAP (Standard Assessment Procedure) | RdSAP (Reduced SAP) |
| Regulation | Part L of Building Regulations | Minimum Energy Efficiency Standards (MEES) |
| Certification Required | Before occupation | Before sale/rent |
Why It Matters
Achieving a higher EPC rating can:
Reduce energy bills
Increase property value
Make homes more attractive to buyers or tenants
Avoid fines for landlords who fall below legal standards
Need Help with Your EPC?
At Urgent EPC, we offer:
📞 Call us today at +447741 812864 or contact us for expert guidance on meeting your EPC requirements.
