31b, Fox Lane, London, N13 4AB

31b is a mid-terrace house in London (N13 4AB). It has a recorded floor area of 84 m² (around 904 sq ft), construction records dating it to 1900-1929 and council tax band E. At 84 m² this is the 3rd smallest of 4 units on EPC record in the building, where floor areas span 53–123 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (60 versus a best of 77). The latest certificate (August 2012) shows a D (score 60), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 78). The latest certificate is from August 2012, so improvements made since then won't be reflected.

Held since July 2001 — that's 25 years off the open market, well above the local norm. Across 1998–2001, sale prices on this property compounded at 16.8% per year. Today's modelled estimate of £449,000 sits 245.4% above the 2001 sale of £130,000. On a £-per-square-foot basis, the last sale (£144/sq ft) was about 64.5% below the postcode norm.