5a, Birkenhead Avenue, Kingston Upon Thames, KT2 6RW

5a is a semi-detached house in Kingston Upon Thames (KT2 6RW). It has a recorded floor area of 46 m² (around 495 sq ft) and construction records dating it to before 1900. At 46 m² this is the smallest unit on EPC record across the building (46–159 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). The latest certificate (April 2024) shows an E (score 50), well below the UK norm with real room to improve. When first surveyed in November 2010 the rating was F, the property has climbed 1 band since. Between certificates, lighting went from Poor to Very Good.

12 years since the last transfer (July 2014). Across the public record there are 4 sales, relatively high churn for a single property. At 46 m² it's 28.7% smaller than the typical home in the postcode (65 m² median across 8 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 88% of similar EPCs). Across 1999–2014, sale prices on this property compounded at 7.9% per year. On a £-per-square-foot basis, the last sale (£737/sq ft) was about 95% above the typical sold price in the postcode.