117a, High Street, King's Lynn, PE30 1DD

117a is a one-bedroom end-of-terrace house in King's Lynn (PE30 1DD). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to 1967-1975 and council tax band A. The latest certificate (August 2024) shows an E (score 51), well below the UK norm with real room to improve. When first surveyed in October 2008 the rating was F, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Average, hot-water efficiency went from Very Poor to Poor and lighting went from Average to Very Good; while main heating dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 71), a 2-band jump. Main heating runs on electricity. At 37 m² this is the 2nd smallest of 8 units on EPC record in the building, where floor areas span 35–74 m². The building's EPC ratings span E to C, with this unit at the bottom. Other recorded features include notable views.

Across 2001–2017, sale prices on this property compounded at 5.5% per year. Today's modelled estimate of £102,000 sits 67.2% above the 2017 sale of £61,000. On a £-per-square-foot basis, the last sale (£153/sq ft) was about 83.4% above the typical sold price in the postcode. At 37 m² it's 21.3% smaller than the typical home in the postcode (47 m² median across 7 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 71% of similar EPCs). On the market in September 2017 and unlisted since — roughly 9 years.