Alderman House, Flat 5, 181 Spring Grove Road, Isleworth, TW7 4BA

Alderman House is a detached house in Isleworth (TW7 4BA). It has a recorded floor area of 117 m² (around 1259 sq ft), construction records dating it to 2003-2006 and council tax band E. At 117 m² this is the largest unit on EPC record across Alderman House (65–117 m²). The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (63 versus a best of 75). The latest certificate (May 2024) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since September 2013. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Very Good; while main heating dropped from Poor to Very Poor. The recommended improvements would push it to C (score 76). Main heating runs on electricity.

At 117 m² the property is well over the postcode median (67 m² across 8 EPCs), placing it in the larger end of the local stock. Across 2007–2022, sale prices on this property compounded at 1.8% per year. On a £-per-square-foot basis, the last sale (£308/sq ft) was about 19.4% below the postcode norm. Most recent transfer: April 2022 at £387,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.