51b, Norman Road, Merton, London, SW19 1BW

51b is a two-bedroom detached house in Merton, London, London (SW19 1BW). It has a recorded floor area of 67 m² (around 721 sq ft), construction records dating it to 1900-1929 and council tax band C. At 67 m² this is the 7th smallest of 27 units on EPC record in the building, where floor areas span 52–151 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 (53 versus a best of 79). The latest certificate (July 2019) shows an E (score 53), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since May 2009. The recommended improvements would lift it to C (score 78), a 2-band jump.

Held since January 1997 — that's 29 years off the open market, well above the local norm. 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 £431,000 sits 618.3% above the 1997 sale of £60,000. On a £-per-square-foot basis, the last sale (£83/sq ft) was about 76.4% below the postcode norm. At 67 m² it's 26.4% smaller than the typical home in the postcode (91 m² median across 27 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs).