Flat 2, 22 Courtenay Mews, London, E17 7PP

Flat 2 is a mid-terrace house in London (E17 7PP). It has a recorded floor area of 49 m² (around 527 sq ft) and construction records dating it to 1900-1929. At 49 m² this is the smallest unit on EPC record across the building (49–71 m²). The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (72 versus a worst of 52). The latest certificate (April 2021) shows a C (score 72). The rating has held steady at C across 2 certificates since January 2010. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Poor to Average and window efficiency went from Very Poor to Average.

Untraded for 26 years, with the last transfer in April 2000. Across 1998–2000, sale prices on this property compounded at 56% per year. Today's modelled estimate of £396,000 sits 316.8% above the 2000 sale of £95,000. On a £-per-square-foot basis, the last sale (£180/sq ft) was about 43.2% below the postcode norm. Its energy rating outperforms most of the postcode (better than 82% of similar EPCs).