Energy efficency rating
Energy Performance Certificate (EPC) rates a property's energy efficiency from A (most efficient) to G (least efficient), influencing potential energy costs and environmental impacts. Non-domestic EPCs are rated from A+ to G.
EPCs are legally required when selling or renting properties in the UK, providing essential information on energy performance to prospective buyers or tenants. Data is published on the number of dwellings that are placed in at least band C, meaning that the dwelling is in at least the top three energy efficiency bands.
The proportion of dwellings that had at least a C grade rating in 2025 varied from 50% in South Tyneside to 59% in South Tyneside Durham.
Detached dwellings and flat and maisonettes were generally more likely to have a C grade rating.
For non-domestic premises, 78% of the EPCs issued in 2025 were C or higher.