Flat 3, 343 Upper Richmond Road West, London, SW14 8QN

Flat 3 is a mid-terrace house in London (SW14 8QN). It has a recorded floor area of 64 m² (around 689 sq ft) and construction records dating it to 1900-1929. At 64 m² this is the largest unit on EPC record across the building (39–64 m²). The building's EPC ratings span E to D, with this unit at the top. On EPC score it ranks first in the building (60 versus a worst of 49). The latest certificate (June 2019) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in August 2010 the rating was F, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good; while main heating dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 81), a 2-band jump. Main heating runs on electricity.

Untraded for 24 years, with the last transfer in July 2002. Across 1996–2002, sale prices on this property compounded at 15.1% per year. Today's modelled estimate of £398,000 sits 130.7% above the 2002 sale of £172,500. On a £-per-square-foot basis, the last sale (£250/sq ft) was about 24.5% below the postcode norm. At 64 m² it's 20.8% larger than the typical home in the postcode (53 m² median across 10 EPCs).