Flat 2, 12 Brunswick Close, Walton On Thames, KT12 3JJ

Flat 2 is a one-bedroom detached house in Walton On Thames (KT12 3JJ). It has a recorded floor area of 41 m² (around 441 sq ft) and construction records dating it to 2022. At 41 m² this is the smallest unit on EPC record across the building (41–63 m²). The building's EPC ratings span D to B, with this unit at the bottom. On EPC score it ranks last in the building (62 versus a best of 81). The home occupies a cul-de-sac position. The latest certificate (September 2022) shows a D (score 62), on the cusp of jumping into the C band. Earlier certificates rated it B (May 2021); the latest reading is 2 bands lower. Between certificates, wall efficiency dropped from Very Good to Good and hot-water efficiency dropped from Very Good to Very Poor. Main heating runs on electricity: electricity, unspecified tariff.

At 41 m² it sits well below the postcode median (63 m² across 24 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 79% of similar EPCs). On a £-per-square-foot basis, the last sale (£657/sq ft) was about 106.7% above the typical sold price in the postcode. Most recent transfer: September 2021 at £290,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.