Energy Performance Certificate (EPC)
Energy efficiency rating
EPCs rate properties from A (most efficient) to G (least efficient). They show estimated energy costs and provide recommendations for improvements.
What This Means
An EPC tells you how energy-efficient a property is. Higher ratings (A-B) mean lower energy bills. Lower ratings (E-G) mean higher bills and potential need for improvements.
Score Ranges
A-B (Very Efficient)
92-100 (A), 81-91 (B)Excellent energy efficiency with very low running costs. Modern insulation, heating, and often renewable energy.
C-D (Average)
69-80 (C), 55-68 (D)Average efficiency. Most UK homes fall into these bands. Some improvements may be beneficial.
E-F (Below Average)
39-54 (E), 21-38 (F)Below average efficiency. Improvements recommended to reduce energy bills. May need upgrading for rental properties.
G (Poor)
1-20Very poor efficiency. Significant improvements needed. High energy bills and may be difficult to mortgage or rent.
Practical Advice
- Current rating shows efficiency as-is, Potential rating shows what's achievable
- EPC certificate lists specific improvements with estimated costs
- Rental properties must be EPC E minimum (C from 2025 proposed)
- Certificate valid for 10 years
- Higher ratings qualify for green mortgages with better rates
Key Points
- Current rating shows energy efficiency as it is now
- Potential rating shows what it could achieve with recommended improvements
- Certificate valid for 10 years
- Required when selling or letting a property
- Rented properties must meet minimum EPC C from 2025 (currently E)
Additional Information
Higher EPC ratings typically mean lower energy bills and better environmental impact. Check the certificate for specific improvement recommendations and costs.