Based on analysis of the DLUHC Energy Performance of Buildings Register, approximately 39% of homes in England and Wales have an EPC rating of D or below. The worst-performing areas tend to be in older housing stock regions, particularly in the North East, Wales, and parts of rural England where solid-wall Victorian and pre-war properties predominate.
| EPC Band | Approximate % of homes | Efficiency level |
|---|---|---|
| A & B | ~3% | Very efficient |
| C | ~20% | Efficient |
| D | ~39% | Below average |
| E | ~22% | Inefficient |
| F & G | ~8% | Very inefficient |
Search any UK postcode on HouseData to see EPC ratings, recommendations, running cost estimates, and certificate history. Our data comes directly from the DLUHC EPC Register and includes all certificates issued since 2008.
HouseData also tracks EPC rating changes over time, so you can see if a property's energy efficiency has improved or deteriorated between assessments.
Source: DLUHC Energy Performance of Buildings Register. HouseData aggregates EPC data across 26M+ certificates. View all data sources.