A recent report released by The Home Builders Federation (HBF) and Octopus Energy, and Octopus Energy, for New Homes Week (February 2 -8) highlights the energy bill savings owners of new build homes can enjoy. Based on Ofgem’s price cap and EPC registration data of new and existing properties they found:
• The average new build homeowner, living in a property with an Energy Performance Rating (EPC) of A or B, spent around £1,574 on their energy bills last year.
• Those living in older homes with a D rating paid on average 21% more – that’s an extra £1,995
• The savings could be even greater. Last year, people living in homes with Energy Performance Certificate ratings of F or G spent 39% more on their energy bills than the average new build homeowner.
• The average new build is £618 a year cheaper to run than an older home with an F or G EPC rating.
According to the most recent findings from February 2026, new build homes don’t just provide greater energy efficiency, they also offer the chance to cut your carbon emissions by up to 74% without changing your habits.
All of our new homes achieve A or B EPC ratings, whereas the HBF and Octopus Energy found than most older homes are D rated.
Their research shows the average home emits around 2,179kg of carbon per year, while D rated homes produce 3,266kg of carbon annually – that’s 50% more. Older homes with an F or G EPC rating emit 74% more carbon than most new build homes, producing 3,787kg every year.