Flat 1, 42 Onslow Road, Richmond, TW10 6QE

Flat 1 is a semi-detached house in Richmond (TW10 6QE). It has a recorded floor area of 26 m² (around 280 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (August 2025) shows an E (score 45), well below the UK norm with real room to improve. When first surveyed in June 2009 the rating was G, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor, lighting went from Poor to Good and main heating went from Poor to Average. The recommended improvements would push it to D (score 68). Main heating runs on electricity.

Held since February 2010 — that's 16 years off the open market, well above the local norm. At 26 m² it sits well below the postcode median (82 m² across 18 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 72% of similar EPCs). Across 2002–2010, sale prices on this property compounded at 5% per year. Today's modelled estimate of £274,000 is 39.4% above the 2010 sale price. On a £-per-square-foot basis, the last sale (£702/sq ft) was about 33.4% above the typical sold price in the postcode.