Flat 5, 25 Knox Road, Wellingborough, NN8 1HW

Flat 5 is a semi-detached house in Wellingborough (NN8 1HW). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to before 1900 and council tax band A. At 49 m² this is the 2nd smallest of 5 units on EPC record in the building, where floor areas span 38–81 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 (46 versus a best of 75). The latest certificate (February 2021) shows an E (score 46), well below the UK norm with real room to improve. Earlier certificates rated it C (September 2009); the latest reading is 2 bands lower. Between certificates, main heating went from Poor to Average; while wall efficiency dropped from Good to Poor and roof efficiency dropped from Very Good to Good. The recommended improvements would push it to D (score 66). Main heating runs on electricity.

At 49 m² it sits well below the postcode median (81 m² across 29 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). One planning record on file: an extension approved in 2007. Past consents include an extension and change of use to residential, meaningful when judging how the property has evolved.