What do the EPC energy efficiency bands actually mean? Here's a clear breakdown of each rating, typical properties in each band, and what it means for running costs.
EPC ratings run from A to G, with A being the most energy efficient and G the least. Each band corresponds to a range of energy efficiency scores and is colour-coded on the certificate, with green for the best ratings, red for the worst.
New builds and properties with heat pumps, solar panels, and high levels of insulation. Very low energy bills. Rare in older urban areas like South London.
Modern or recently retrofitted properties. Good insulation, modern boiler, and often some renewable energy generation. Increasingly common in newer developments.
The target for most retrofit improvements. Properties with cavity wall insulation, double glazing, and an efficient gas boiler typically reach this band. The government's proposed future rental standard.
The most common rating in the UK. Properties with reasonable insulation but an older boiler or single glazing may fall here. Cost-effective improvements can usually achieve a C.
The current minimum for private rentals. Solid wall properties with limited insulation and older heating systems are typical here. MEES compliance threshold for landlords.
Older properties with minimal insulation, inefficient heating, and single glazing. Cannot be legally rented without improvement or a registered exemption. High energy bills likely.
ABBE-accredited assessments with fast turnaround across Lambeth, Wandsworth, and Southwark.
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ABBE-accredited EPC assessments across Lambeth, Wandsworth, and Southwark.
