16a, Greengate Street, London, E13 0AS

16a is a two-bedroom end-of-terrace house in London (E13 0AS). It has a recorded floor area of 48 m² (around 512 sq ft) and construction records dating it to 1967-1975. There is a swimming pool on the plot, uncommon for the area. Other recorded features include a balcony. At 48 m² this is the 24th smallest of 26 units on EPC record in the building, where floor areas span 15–61 m². The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (March 2012) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since January 2012. Between certificates, window efficiency went from Average to Good; while wall efficiency dropped from Good to Poor and lighting dropped from Very Good to Poor. The recommended improvements would push it to C (score 75). The latest certificate is from March 2012, so improvements made since then won't be reflected.

Untraded for 31 years, with the last transfer in September 1995. 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 £293,000 sits 324.6% above the 1995 sale of £69,000. On a £-per-square-foot basis, the last sale (£135/sq ft) was about 47.3% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs).