Flat 6, 1 Whitacre Mews, Lambeth, London, SE11 4AB

Flat 6 is a one-bedroom semi-detached house in Lambeth, London, London (SE11 4AB). It has a recorded floor area of 39 m² (around 420 sq ft) and construction records dating it to before 1900. At 39 m² this is the smallest unit on EPC record across the building (39–98 m²). The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (November 2021) shows a D (score 62), on the cusp of jumping into the C band. Earlier certificates rated it C (September 2009); the latest reading is one band lower. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Average to Good and lighting went from Very Poor to Very Good; while roof efficiency dropped from Poor to Very Poor and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to C (score 77).

At 39 m² it sits well below the postcode median (72 m² across 5 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). Last sale on file: £488,000 in September 2022. Across the public record there are 5 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 2004–2022, sale prices on this property compounded at 4.3% per year. On a £-per-square-foot basis, the last sale (£1,162/sq ft) was about 179.7% above the typical sold price in the postcode.