81a, Colworth Road, Waltham Forest, London, E11 1JA

81a is a one-bedroom mid-terrace house in Waltham Forest, London, London (E11 1JA). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to 1900-1929 and council tax band B. At 58 m² this is the 7th smallest of 29 units on EPC record in the building, where floor areas span 30–165 m². The building's EPC ratings span E to C across 29 units on file. The latest certificate (April 2016) shows a D (score 59), a step below the typical UK home. The recommended improvements would push it to C (score 73). The latest certificate is from April 2016, so improvements made since then won't be reflected.

Held since April 1995 — that's 31 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 £394,000 sits 738.3% above the 1995 sale of £47,000. On a £-per-square-foot basis, the last sale (£75/sq ft) was about 75.4% below the postcode norm.