The Old School House, Ambleside Avenue, Walton On Thames, KT12 3LJ

The Old School House is a semi-detached house in Walton On Thames (KT12 3LJ). It has a recorded floor area of 63 m² (around 678 sq ft), construction records dating it to 2007 onwards and council tax band E. The latest certificate (March 2020) shows a D (score 58), a step below the typical UK home. When first surveyed in March 2020 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Very Poor to Good and window efficiency went from Average to Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would lift it to A (score 92), a 3-band jump. Main heating runs on electricity.

Held since February 2008 — that's 18 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 63 m² the property is well over the postcode median (48 m² across 27 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension and a porch, meaningful when judging how the property has evolved. Today's modelled estimate of £473,000 is 38.7% above the 2008 sale price. On a £-per-square-foot basis, the last sale (£503/sq ft) was about 51.6% above the typical sold price in the postcode.