Walton House, Flat 4, Grove Road, Surbiton, KT6 4DB

Walton House is a two-bedroom end-of-terrace house in Surbiton (KT6 4DB). It has a recorded floor area of 61 m² (around 657 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (November 2024) shows a D (score 61), on the cusp of jumping into the C band. When first surveyed in March 2009 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Average and lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 79). Main heating runs on electricity. At 61 m² this is the 3rd smallest of 6 units on EPC record in Walton House, where floor areas span 59–73 m². The building's EPC ratings span D to C, with this unit at the bottom.

It changed hands recently, sold March 2025 for £425,000. Across the public record there are 4 sales, relatively high churn for a single property. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). Across 2009–2025, sale prices on this property compounded at 4% per year. On a £-per-square-foot basis, the last sale (£647/sq ft) was about 72.7% above the typical sold price in the postcode.