Energy price cap rises 13% from 1 July, adding up to £591 a year to bills in the least efficient homes

Ofgem's energy price cap rose 13% on 1 July, and Rightmove's bills tracker shows a G-rated home now faces costs around £591 a year higher, against £65 for an A-rated one. Higher running costs push energy efficiency up the checklist when households compare homes — Rightmove reported a 35% jump in demand for top-rated properties earlier this year. For buyers, the EPC is now a real cost signal; for sellers, with over half of listed homes rated D or below, efficiency increasingly affects saleability. This shifts preferences rather than prices — the wider market signal is unchanged.