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.
A new analysis of 2,241,566 searchable North West EPC records has identified a repeated East Lancashire concentration where high Poor or Very Poor recorded wall-efficiency shares coincide with high D-or-below + potential A/B shares.
Pendle records 61.12% Poor/Very Poor wall efficiency and 35.79% D-or-below + potential A/B. Hyndburn records 57.04% and 35.59%; Burnley 52.79% and 34.39%; Rossendale 51.35% and 34.54%.
The analysis separately identifies unusually high Poor/Very Poor heating-efficiency evidence in Salford at 26.46% and Manchester at 20.27%, compared with 8.86% across the North West dataset.
EPC Atlas flags these as case-study leads requiring deeper adjustment, not as building-survey findings or council-performance league tables.
Key figures
- 49.22% of North West records are D-or-below.
- 586,349 are D-or-below + potential A/B.
- 33.95% show Poor/Very Poor wall efficiency.
- North West has the highest >10-year certificate share at 25.45%.
About the research
The EPC Atlas UK Data Book 2026 Volume One v0.3 analyses 17,624,989 searchable records across ten England-and-Wales regional datasets. Scotland and Northern Ireland are outside the research corpus.
About EPC Atlas
EPC Atlas is a UK property and energy-performance data research and intelligence project designed to make large-scale EPC evidence searchable, comparable and easier to analyse at national, regional and local level.