217 Spring Grove Road, Isleworth, TW7 4AF

217 Spring Grove Road is a one-bedroom semi-detached house in Isleworth (TW7 4AF). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (March 2021) shows an E (score 47), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2010); the latest reading is one band lower. Between certificates, window efficiency went from Poor to Good and lighting went from Poor to Good; while roof efficiency dropped from Good to Very Poor. The recommended improvements would push it to D (score 64). At 57 m² this is the 5th smallest of 9 units on EPC record in the building, where floor areas span 50–123 m². The building's EPC ratings span F to D across 9 units on file.

Across 1995–2023, sale prices on this property compounded at 6.3% per year. On a £-per-square-foot basis, the last sale (£465/sq ft) was about 75% above the typical sold price in the postcode. At 57 m² it's 27.4% smaller than the typical home in the postcode (79 m² median across 8 EPCs). Last sale on file: £285,000 in October 2023.