Flat 3, 10 Stile Hall Gardens, London, W4 3BP

Flat 3 is a mid-terrace house in London (W4 3BP). It has a recorded floor area of 46 m² (around 495 sq ft) and construction records dating it to 1900-1929. At 46 m² this is the smallest unit on EPC record across the building (46–66 m²). The building's EPC ratings span G to C, with this unit at the bottom. On EPC score it ranks last in the building (17 versus a best of 69). The latest certificate (October 2017) shows a G (score 17), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 60), a 3-band jump. Main heating runs on electricity.

Untraded for 17 years, with the last transfer in November 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. At 46 m² it sits well below the postcode median (69 m² across 14 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £366,000 is 49.4% above the 2009 sale price.