23a, Coval Road, Richmond Upon Thames, London, SW14 7RW

23a is a two-bedroom semi-detached house in Richmond Upon Thames, London, London (SW14 7RW). It has a recorded floor area of 67 m² (around 721 sq ft), construction records dating it to 1900-1929 and council tax band D. Tenure is freehold. The latest certificate (August 2021) 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 2009. Between certificates, lighting went from Very Poor to Very Good; while roof efficiency dropped from Good to Average. The recommended improvements would push it to C (score 72). At 67 m² this is the 3rd smallest of 23 units on EPC record in the building, where floor areas span 64–173 m². The building's EPC ratings span F to C across 23 units on file. Our model identifies extension potential, subject to local planning policy.

It changed hands recently, sold October 2025 for £590,000. At 67 m² it sits well below the postcode median (142 m² across 22 EPCs), making it one of the more compact homes locally. Across 1995–2025, sale prices on this property compounded at 6.7% per year. On a £-per-square-foot basis, the last sale (£818/sq ft) was about 40.3% above the typical sold price in the postcode.