1 Ash Tree Close, West Kingsdown, Sevenoaks, TN15 6JA

1 Ash Tree Close is a four-bedroom detached house in West Kingsdown, Sevenoaks, Sevenoaks (TN15 6JA). It has a recorded floor area of 123 m² (around 1324 sq ft), construction records dating it to 1983-1990 and council tax band F. The latest certificate (June 2015) shows a D (score 57), a step below the typical UK home. The rating has held steady at D across 3 certificates since January 2009. Between certificates, window efficiency went from Poor to Average, hot-water efficiency went from Poor to Good and main heating went from Average to Good; while wall efficiency dropped from Good to Poor and roof efficiency dropped from Good to Average. The recommended improvements would push it to C (score 79). The latest certificate is from June 2015, so improvements made since then won't be reflected.

Held since January 2011 — that's 15 years off the open market, well above the local norm. Today's modelled estimate of £511,000 sits 68.9% above the 2011 sale of £302,500. On a £-per-square-foot basis, the last sale (£228/sq ft) was about 44.3% below the postcode norm.