20 Zambra Way, Seal, Sevenoaks, TN15 0DJ

20 Zambra Way is a semi-detached house in Seal, Sevenoaks, Sevenoaks (TN15 0DJ). It has a recorded floor area of 139 m² (around 1496 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (February 2015) shows an E (score 54), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2011); the latest reading is one band lower. Between certificates, window efficiency went from Poor to Good; while roof efficiency dropped from Average to Very Poor and lighting dropped from Average to Poor. The recommended improvements would lift it to C (score 76), a 2-band jump. The latest certificate is from February 2015, so improvements made since then won't be reflected.

At 139 m² the property is well over the postcode median (89 m² across 24 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1996–2012, sale prices on this property compounded at 8.3% per year. Today's modelled estimate of £490,000 sits 55.6% above the 2012 sale of £315,000. On a £-per-square-foot basis, the last sale (£211/sq ft) was about 37.9% below the postcode norm. On the market in March 2012 and unlisted since — roughly 14 years.