Flat 3, 10 Graham Road, Weston Super Mare, BS23 1YA

Flat 3 is a semi-detached house in Weston Super Mare (BS23 1YA). It has a recorded floor area of 20 m² (around 215 sq ft) and construction records dating it to before 1900. At 20 m² this is the smallest unit on EPC record across the building (20–54 m²). The building's EPC ratings span E to D, with this unit at the bottom. The latest certificate (February 2022) shows an E (score 54), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since March 2012. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Good and window efficiency went from Poor to Good; while lighting dropped from Good to Average and main heating dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 77), a 2-band jump. Main heating runs on to be used only when there is no heating/hot.

At 20 m² it sits well below the postcode median (68 m² across 54 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 70% of similar EPCs).