18c, Ranelagh Road, London, W5 5RJ

18c is a mid-terrace house in London (W5 5RJ). It has a recorded floor area of 54 m² (around 581 sq ft), construction records dating it to 1900-1929 and council tax band D. At 54 m² this is the 12th smallest of 31 units on EPC record in the building, where floor areas span 27–108 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 (42 versus a best of 76). The latest certificate (October 2023) shows an E (score 42), well below the UK norm with real room to improve. The rating has held steady at E across 4 certificates since January 2016. Between certificates, lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Average to Very Poor and main heating dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 82), a 3-band jump. Main heating runs on electricity.

At 54 m² it's 20.6% smaller than the typical home in the postcode (68 m² median across 75 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 77% of similar EPCs).