Flat 4, 40 Maple Road, Surbiton, KT6 4AB

Flat 4 is a mid-terrace house in Surbiton (KT6 4AB). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 1930-1949 and council tax band C. At 47 m² this is the smallest unit on EPC record across the building (47–70 m²). The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (October 2022) shows an E (score 52), well below the UK norm with real room to improve. When first surveyed in September 2021 the rating was G, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Very Poor to Good and window efficiency went from Very Poor to Poor. The recommended improvements would lift it to C (score 77), a 2-band jump. Main heating runs on electricity.

At 47 m² it's 16.1% smaller than the typical home in the postcode (56 m² median across 37 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). Today's modelled estimate of £339,000 is 29.4% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£518/sq ft) was about 40.7% above the typical sold price in the postcode. Sold May 2022 for £262,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.