Copper Beeches, Flat 18, 6 Witham Road, Isleworth, TW7 4AW

Copper Beeches is a two-bedroom semi-detached house in Isleworth (TW7 4AW). It has a recorded floor area of 48 m² (around 517 sq ft) and construction records dating it to 1983-1990. The latest certificate (March 2024) shows a C (score 79), near the top of the C band. The rating has held steady at C across 2 certificates since May 2011. Between certificates, wall efficiency went from Average to Good and lighting went from Average to Very Good; while window efficiency dropped from Good to Average. At 48 m² this is the 9th 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 across 28 units on file.

On the market in December 2016 and unlisted since — roughly 9 years. Across the public record there are 4 sales, relatively high churn for a single property. Across 1998–2016, sale prices on this property compounded at 8.7% per year. On a £-per-square-foot basis, the last sale (£687/sq ft) was about 119.1% above the typical sold price in the postcode.