12 Ascham Lane, Whittlesford, Cambridge, CB22 4NT

12 Ascham Lane is a four-bedroom detached house in Whittlesford, Cambridge, Cambridge (CB22 4NT). It has a recorded floor area of 152 m² (around 1640 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (June 2010) shows an F (score 36), near the bottom of the EPC scale. Earlier certificates rated it E (June 2010); the latest reading is one band lower. The recommended improvements would lift it to D (score 62), a 2-band jump. Main heating runs on oil. The latest certificate is from June 2010, so improvements made since then won't be reflected. It has already been extended once and our model flags further extension potential, a sign of buyer flexibility. The home occupies a corner plot and a cul-de-sac position.

Held since June 2011 — that's 15 years off the open market, well above the local norm. Today's modelled estimate of £567,000 sits 59.7% above the 2011 sale of £355,000. On a £-per-square-foot basis, the last sale (£216/sq ft) was about 33.2% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs).