Copper Beeches, Flat 13, 6 Witham Road, Isleworth, TW7 4AW

Copper Beeches is a mid-terrace house in Isleworth (TW7 4AW). It has a recorded floor area of 60 m² (around 646 sq ft) and construction records dating it to 1991-1995. The latest certificate (September 2023) returns a B (score 81), comfortably above the UK average. When first surveyed in August 2012 the rating was C, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good, hot-water efficiency went from Average to Good and lighting went from Good to Very Good. At 60 m² this is the 22nd 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 top.

It hasn't traded since January 2007, a hold of 19 years that's notably long for the area. 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 top 10% of properties in this postcode. Across 2004–2007, sale prices on this property compounded at 2.8% per year. Today's modelled estimate of £349,000 sits 58.6% above the 2007 sale of £220,000.