EPC ratings and your bills: what the letters really mean

An Energy Performance Certificate rates a home from A (most efficient) to G (least). It’s easy to skim past, but the gap between a C and an F can mean hundreds of pounds a year in heating alone — and, increasingly, a gap in the price buyers will pay.

A better rating usually reflects good insulation, efficient heating and, often, double or triple glazing. A poor one flags where you’ll be spending money: draughty windows, an ageing boiler, uninsulated walls or loft.

None of this is a dealbreaker — many lovely older homes rate lower and can be improved over time — but it should inform your offer and your budget. Ask what work has been done, and factor future upgrades into the numbers.

On Bybricks, the EPC rating is one of the material-information fields that lifts a listing’s quality score, so you’ll often find it right there on the page.