Flat 5, 539 London Road, Isleworth, TW7 4EA

Flat 5 is an end-of-terrace house in Isleworth (TW7 4EA). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 2003-2006 and council tax band C. At 74 m² this is the largest unit on EPC record across the building (46–74 m²). The building's EPC ratings span C to B, with this unit at the top. On EPC score it ranks first in the building (81 versus a worst of 75). The latest certificate (February 2020) returns a B (score 81), comfortably above the UK average. When first surveyed in July 2011 the rating was C, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good and lighting went from Average to Very Good.

At 74 m² it's 25.4% larger than the typical home in the postcode (59 m² median across 8 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. On a £-per-square-foot basis, the last sale (£377/sq ft) was about 20.7% above the typical sold price in the postcode. Most recent transfer: February 2021 at £300,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.