17 Gainsborough Court, Chaseley Drive, Hounslow, London, W4 4BD

17 Gainsborough Court is a mid-terrace house in Hounslow, London, London (W4 4BD). It has a recorded floor area of 57 m² (around 615 sq ft), construction records dating it to 1991-1995 and council tax band E. The latest certificate (November 2009) returns a B (score 84), comfortably above the UK average. The latest certificate is from November 2009, so improvements made since then won't be reflected. At 57 m² this is the 10th smallest of 16 units on EPC record in the building, where floor areas span 40–77 m². The building's EPC ratings span D to B, with this unit at the top. On EPC score it ranks first in the building (84 versus a worst of 63).

Held since July 2003 — that's 23 years off the open market, well above the local norm. At 57 m² it's 19.1% larger than the typical home in the postcode (48 m² median across 50 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Across 2002–2003, sale prices on this property compounded at 5.4% per year. Today's modelled estimate of £460,000 sits 87.8% above the 2003 sale of £245,000.