Catherine House, Flat 2, Busch Close, Isleworth, TW7 6UE

Catherine House is a two-bedroom end-of-terrace house in Isleworth (TW7 6UE). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to 1991-1995 and council tax band D. At 58 m² this is the 3rd smallest of 16 units on EPC record in Catherine House, where floor areas span 57–60 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (May 2021) shows a D (score 63), on the cusp of jumping into the C band. Earlier certificates rated it C (June 2011); the latest reading is one band lower. Between certificates, lighting went from Poor to Very Good; while hot-water efficiency dropped from Average to Poor and main heating dropped from Average to Very Poor. The recommended improvements would push it to C (score 76). Main heating runs on electricity.

On the market in February 2013 and unlisted since — roughly 13 years. Across the public record there are 5 sales, relatively high churn for a single property. Across 1997–2013, sale prices on this property compounded at 5.8% per year. Today's modelled estimate of £339,000 is 47.4% above the 2013 sale price. On a £-per-square-foot basis, the last sale (£368/sq ft) was about 43.8% above the typical sold price in the postcode.