Excelsior Court, Flat 13, Scarborough Street, Wellingborough, NN9 5FE

Excelsior Court is a one-bedroom mid-terrace house in Wellingborough (NN9 5FE). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1900-1929 and council tax band A. At 55 m² this is the 10th smallest of 16 units on EPC record in Excelsior Court, where floor areas span 44–65 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 (50 versus a best of 75). The latest certificate (December 2019) shows an E (score 50), well below the UK norm with real room to improve. Earlier certificates rated it C (June 2009); the latest reading is 2 bands lower. Between certificates, hot-water efficiency went from Poor to Average; while wall efficiency dropped from Good to Very Poor and roof efficiency dropped from Average to Poor. The recommended improvements would lift it to C (score 74), a 2-band jump. Main heating runs on electricity.

Untraded for 24 years, with the last transfer in September 2002. Across 1995–2002, sale prices on this property compounded at 9.3% per year. Today's modelled estimate of £105,000 sits 159.3% above the 2002 sale of £40,500. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs).