20 Ashen Grove Road, Knatts Valley, Sevenoaks, TN15 6YE

20 Ashen Grove Road is a four-bedroom detached house in Knatts Valley, Sevenoaks, Sevenoaks (TN15 6YE). It has a recorded floor area of 335 m² (around 3606 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (December 2022) shows a D (score 56), a step below the typical UK home. When first surveyed in January 2009 the rating was G, the property has climbed 3 bands since. Between certificates, wall efficiency went from Poor to Good, window efficiency went from Poor to Average and hot-water efficiency went from Very Poor to Poor. The recommended improvements would push it to C (score 74). Main heating runs on electricity. Other recorded features include a self-contained annexe.

Untraded for 17 years, with the last transfer in April 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. At 335 m² the property is well over the postcode median (210 m² across 24 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £824,000 sits 149.7% above the 2009 sale of £330,000. On a £-per-square-foot basis, the last sale (£92/sq ft) was about 64.3% below the postcode norm. One planning record on file: an extension refused in 2021.