Flat 3, 34 Grove Road, Surbiton, KT6 4BZ

Flat 3 is a one-bedroom semi-detached house in Surbiton (KT6 4BZ). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1967-1975 and council tax band D. At 55 m² this is the 3rd smallest of 5 units on EPC record in the building, where floor areas span 48–104 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (50 versus a best of 76). Period features are noted in the property record. The latest certificate (November 2011) shows an E (score 50), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 58). The latest certificate is from November 2011, so improvements made since then won't be reflected.

Untraded for 27 years, with the last transfer in February 1999. Across 1995–1999, sale prices on this property compounded at 9.3% per year. Today's modelled estimate of £327,000 sits 244.4% above the 1999 sale of £94,950. On a £-per-square-foot basis, the last sale (£160/sq ft) was about 52.1% below the postcode norm. At 55 m² it's 17.9% smaller than the typical home in the postcode (67 m² median across 23 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs).