Flat 4, 44 Onslow Road, Richmond, TW10 6QE

Flat 4 is a two-bedroom mid-terrace house in Richmond (TW10 6QE). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to before 1900 and council tax band E. Tenure is freehold. The latest certificate (March 2020) shows an E (score 52), well below the UK norm with real room to improve. When first surveyed in June 2012 the rating was F, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Poor to Very Good and lighting went from Very Poor to Good. The recommended improvements would lift it to C (score 72), a 2-band jump. At 68 m² this is the 3rd smallest of 4 units on EPC record in the building, where floor areas span 30–89 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (52 versus a best of 70). Period features are noted in the property record.

At 68 m² it's 17.1% smaller than the typical home in the postcode (82 m² median across 18 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 72% of similar EPCs). Across 1997–2017, sale prices on this property compounded at 7.7% per year. On a £-per-square-foot basis, the last sale (£943/sq ft) was about 92.4% above the typical sold price in the postcode. On the market in August 2017 and unlisted since — roughly 9 years.