23 Covington Grove, Wellingborough, NN8 4ED

23 Covington Grove is a semi-detached house in Wellingborough (NN8 4ED). It has a recorded floor area of 75 m² (around 807 sq ft), construction records dating it to 1996-2002 and council tax band C. The latest certificate (February 2014) shows a D (score 66), on the cusp of jumping into the C band. Earlier certificates rated it C (June 2011); the latest reading is one band lower. Between certificates, window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 84), a 2-band jump. The latest certificate is from February 2014, so improvements made since then won't be reflected.

Across 2002–2014, sale prices on this property compounded at 2.6% per year. Today's modelled estimate of £230,000 sits 64.9% above the 2014 sale of £139,500. On a £-per-square-foot basis, the last sale (£173/sq ft) was about 31.1% above the typical sold price in the postcode. At 75 m² it's 18.5% smaller than the typical home in the postcode (92 m² median across 13 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 85% of similar EPCs). 12 years since the last transfer (March 2014).