21 Betley Court, Walton On Thames, KT12 3BT

21 Betley Court is a three-bedroom mid-terrace house in Walton On Thames (KT12 3BT). It has a recorded floor area of 84 m² (around 904 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (May 2014) shows a D (score 62), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 86), a 2-band jump. The latest certificate is from May 2014, so improvements made since then won't be reflected. Our model identifies extension potential, subject to local planning policy.

It hasn't traded since December 2007, a hold of 18 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 1995–2007, sale prices on this property compounded at 11.6% per year. Today's modelled estimate of £492,000 sits 60% above the 2007 sale of £307,500. On a £-per-square-foot basis, the last sale (£340/sq ft) was about 18.1% above the typical sold price in the postcode. At 84 m² it's 16.7% larger than the typical home in the postcode (72 m² median across 18 EPCs).