Dingley Flats, Flat 3, 1 Kingsley Avenue, Daventry, NN11 4AN

Dingley Flats is an end-of-terrace house in Daventry (NN11 4AN). It has a recorded floor area of 122 m² (around 1313 sq ft) and construction records dating it to 1900-1929. At 122 m² this is the largest unit on EPC record across Dingley Flats (100–122 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 (47 versus a best of 70). The latest certificate (March 2019) shows an E (score 47), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since November 2008. Between certificates, window efficiency went from Poor to Average and lighting went from Very Poor to Average; while wall efficiency dropped from Poor to Very Poor and roof efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 69), a 2-band jump.

Held since May 2004 — that's 22 years off the open market, well above the local norm. At 122 m² the property is well over the postcode median (90 m² across 34 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 76% of similar EPCs). Today's modelled estimate of £190,000 sits 93.9% above the 2004 sale of £98,000. On a £-per-square-foot basis, the last sale (£75/sq ft) was about 56% below the postcode norm.