11 Barrett Close, King's Lynn, PE30 4UQ

11 Barrett Close is an end-of-terrace house in King's Lynn (PE30 4UQ). It has a recorded floor area of 25 m² (around 269 sq ft), construction records dating it to 1976-1982 and council tax band A. At 25 m² this is the 3rd smallest of 31 units on EPC record in the building, where floor areas span 24–69 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (43 versus a best of 78). The latest certificate (June 2021) shows an E (score 43), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since July 2010. Between certificates, wall efficiency went from Average to Good and window efficiency went from Average to Good; while lighting dropped from Very Good to Good and main heating dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 78), a 2-band jump. Main heating runs on electricity.

Across 1995–2021, sale prices on this property compounded at 4.4% per year. Today's modelled estimate of £116,000 sits 123.1% above the 2021 sale of £52,000. On a £-per-square-foot basis, the last sale (£193/sq ft) was about 28.8% above the typical sold price in the postcode. At 25 m² it sits well below the postcode median (41 m² across 30 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 77% of similar EPCs). Last sale on file: £52,000 in June 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.