Copper Beeches, Flat 22, 6 Witham Road, Isleworth, TW7 4AW

Copper Beeches is a two-bedroom mid-terrace house in Isleworth (TW7 4AW). It has a recorded floor area of 59 m² (around 635 sq ft) and construction records dating it to 1967-1975. At 59 m² this is the 16th smallest of 28 units on EPC record in Copper Beeches, where floor areas span 42–72 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 (65 versus a best of 81). The latest certificate (July 2024) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2012. Between certificates, lighting went from Average to Very Good; while wall efficiency dropped from Good to Poor. The recommended improvements would push it to C (score 78).

Untraded for 19 years, with the last transfer in October 2007. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £353,000 sits 53.5% above the 2007 sale of £230,000. On a £-per-square-foot basis, the last sale (£362/sq ft) was about 16.9% above the typical sold price in the postcode.