3a, Coningham Road, Hammersmith And Fulham, London, W12 8BP

3a is an end-of-terrace house in Hammersmith And Fulham, London, London (W12 8BP). It has a recorded floor area of 39 m² (around 420 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (July 2020) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it C (June 2010); the latest reading is one band lower. Between certificates, window efficiency went from Very Poor to Average and lighting went from Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 76). At 39 m² this is the 8th smallest of 43 units on EPC record in the building, where floor areas span 31–238 m². The building's EPC ratings span E to C across 43 units on file.

Held since January 2005 — that's 21 years off the open market, well above the local norm. Across 2001–2005, sale prices on this property compounded at 4.1% per year. Today's modelled estimate of £415,000 sits 66% above the 2005 sale of £250,000. On a £-per-square-foot basis, the last sale (£596/sq ft) was about 52.9% above the typical sold price in the postcode. At 39 m² it's 18.8% smaller than the typical home in the postcode (48 m² median across 68 EPCs).