15a, Chestnut Road, Yardley Gobion, Towcester, NN12 7TW

15a is a three-bedroom semi-detached house in Yardley Gobion, Towcester, Towcester (NN12 7TW). It has a recorded floor area of 98 m² (around 1055 sq ft), construction records dating it to 1983-1990 and council tax band C. The latest certificate (November 2018) shows a C (score 70). The rating has held steady at C across 2 certificates since October 2008. Between certificates, lighting went from Very Poor to Average; while window efficiency dropped from Good to Average and main heating dropped from Very Good to Good. The recommended improvements would lift it to A (score 103), a 2-band jump. The home occupies a cul-de-sac position.

Held since May 2001 — that's 25 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £313,000 sits 226% above the 2001 sale of £96,000. On a £-per-square-foot basis, the last sale (£91/sq ft) was about 54.5% below the postcode norm. At 98 m² it's 21% smaller than the typical home in the postcode (124 m² median across 8 EPCs). Its energy rating outperforms most of the postcode (better than 88% of similar EPCs).