21b, Hurst Road, Waltham Forest, London, E17 3BL

21b is an end-of-terrace house in Waltham Forest, London, London (E17 3BL). It has a recorded floor area of 40 m² (around 431 sq ft) and construction records dating it to 1976-1982. The latest certificate (April 2023) shows a C (score 69), just inside the C band. When first surveyed in August 2010 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good and main heating went from Average to Good. At 40 m² this is the 2nd smallest of 40 units on EPC record in the building, where floor areas span 37–166 m². The building's EPC ratings span E to B across 40 units on file.

Untraded for 30 years, with the last transfer in June 1996. 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 £242,000 sits 633.3% above the 1996 sale of £33,000. On a £-per-square-foot basis, the last sale (£77/sq ft) was about 72.7% below the postcode norm. At 40 m² it sits well below the postcode median (108 m² across 39 EPCs), making it one of the more compact homes locally.