Flat 3, 20 Frome Road, London, N22 6BP

Flat 3 is a mid-terrace house in London (N22 6BP). It has a recorded floor area of 42 m² (around 452 sq ft) and construction records dating it to 1930-1949. At 42 m² this is the largest unit on EPC record across the building (26–42 m²). The building's EPC ratings span E to D, with this unit at the bottom. On EPC score it ranks last in the building (39 versus a best of 62). The latest certificate (June 2020) shows an E (score 39), well below the UK norm with real room to improve. The rating has held steady at E across 3 certificates since October 2008. Between certificates, lighting went from Good to Very Good; while main heating dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 78), a 2-band jump. Main heating runs on electricity.

At 42 m² it's 26.3% smaller than the typical home in the postcode (57 m² median across 35 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs).