21 Old School Court, King's Lynn, PE30 1DB

21 Old School Court is a one-bedroom end-of-terrace house in King's Lynn (PE30 1DB). It has a recorded floor area of 47 m² (around 507 sq ft), construction records dating it to 1900-1929 and council tax band A. At 47 m² this is the 2nd smallest of 22 units on EPC record in the building, where floor areas span 40–120 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (February 2012) shows a C (score 69), just inside the C band. When first surveyed in February 2010 the rating was G, the property has climbed 4 bands since. Between certificates, roof efficiency went from Very Poor to Very Good, window efficiency went from Very Poor to Average and main heating went from Very Poor to Poor; while hot-water efficiency dropped from Average to Poor. Main heating runs on electricity. The latest certificate is from February 2012, so improvements made since then won't be reflected.

Today's modelled estimate of £120,000 sits 100% above the 2011 sale of £60,000. On a £-per-square-foot basis, the last sale (£118/sq ft) was about 31.2% below the postcode norm. At 47 m² it's 27.5% smaller than the typical home in the postcode (65 m² median across 21 EPCs). Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). Last changed hands 15 years ago, in September 2011.