Media releases and research source material
Press releases are supported by matching permanent research pages and the full EPC Atlas UK Data Book 2026. Statistics are published with the same denominator and evidence cautions used in the source research.
Current releases
Analysis of 17.6 million EPC records identifies 4.3 million rated D or below with potential A or B
New EPC Atlas research finds more than half of lower-rated records examined show potential for an A or B rating, highlighting the scale of the gap between current and potential energy performance.
EPC analysis identifies East Lancashire cluster of records with poor wall efficiency but high improvement potential
Pendle, Hyndburn, Burnley and Rossendale emerge repeatedly in new analysis of more than 2.24 million North West EPC records.
Wales has highest share of lower-rated EPC records - but also leads on recorded solar PV
New analysis reveals a more complicated Welsh energy picture, with lower-rated housing existing alongside comparatively strong renewable-technology evidence.
London EPC figures hide a striking home-efficiency divide, analysis of 2.6 million records finds
The capital has the lowest D-or-below share in the ten-region study, but unusually high Poor/Very Poor wall and window evidence.
Editorial rules
- Lead with the discovery, then attribute it to EPC Atlas.
- Use “searchable EPC records” rather than automatically describing every row as a current home.
- Potential A/B is EPC evidence, not a verified or costed retrofit plan.
- Unknown is not converted to No for mains gas, Solar PV or loft evidence.
- Local-authority rankings are research indicators, not council-performance league tables.