Flat 3, 2 Birchington Road, London, N8 8HR

Flat 3 is an end-of-terrace house in London (N8 8HR). It has a recorded floor area of 23 m² (around 248 sq ft), construction records dating it to 1900-1929 and council tax band B. At 23 m² this is the smallest unit on EPC record across the building (23–55 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (39 versus a best of 70). 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 2 certificates since May 2010. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Poor and lighting went from Good to Very Good. The recommended improvements would lift it to C (score 70), a 2-band jump. Main heating runs on electricity.

Untraded for 28 years, with the last transfer in January 1998. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £223,000 sits 490.7% above the 1998 sale of £37,750. On a £-per-square-foot basis, the last sale (£152/sq ft) was about 63.9% below the postcode norm. At 23 m² it sits well below the postcode median (60 m² across 24 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs).