What Is an Energy Performance Certificate (EPC)?
An Energy Performance Certificate (EPC) is a legal document that shows how energy-efficient a property is. It provides a rating from A (most efficient) to G (least efficient), along with suggestions for improving the energy performance of the building.
Why Is an EPC Important?
- Legal Requirement: Required when selling, renting, or building a property in the UK
- Energy Awareness: Helps homeowners and tenants understand energy usage
- Cost Savings: Identifies improvements to reduce energy bills
- Environmental Impact: Encourages reduced carbon emissions
What’s Included in an EPC?
| Component | Description |
|---|---|
| Energy Efficiency Rating | Graded from A (best) to G (worst) |
| Environmental Impact | CO₂ emissions data |
| Estimated Energy Costs | Annual heating, lighting, and hot water estimates |
| Property Features | Heating system, insulation, lighting types |
| Recommended Improvements | Suggestions to improve energy performance |
| Assessor Details | Name, accreditation number, and date of assessment |
Who Needs an EPC?
- Homeowners: Required before selling a property
- Landlords: Legally required for rental listings
- New Builds: Must be completed before construction is finished
- Tenants: Can request a copy of the EPC before signing a lease
How Is an EPC Calculated?
A certified energy assessor inspects the property, assessing various elements such as:
- Wall, roof, and floor insulation
- Window types and glazing
- Heating systems and controls
- Lighting and energy-saving features
- Property layout and size
All data is entered into government-approved software to generate the final rating and recommendations.
How Long Is an EPC Valid?
An EPC is valid for 10 years from the date of issue. If your certificate expires or major energy-related changes are made to the property, a new assessment may be required.
Benefits of a Good EPC Rating
- Lower energy bills
- Higher property value
- Improved comfort and reduced heat loss
- Better eligibility for green grants or funding