20 Chartwell Close, Greenford, UB6 8LP

20 Chartwell Close is a mid-terrace house in Greenford (UB6 8LP). It has a recorded floor area of 53 m² (around 570 sq ft), construction records dating it to 1983-1990 and council tax band C. At 53 m² this is the 39th smallest of 41 units on EPC record in the building, where floor areas span 27–56 m². The building's EPC ratings span E to B, with this unit at the bottom. The latest certificate (November 2019) shows an E (score 54), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2009); 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 main heating dropped from Average to Very Poor. The recommended improvements would lift it to C (score 75), a 2-band jump. Main heating runs on electricity.

At 53 m² the property is well over the postcode median (31 m² across 40 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2007–2020, sale prices on this property compounded at 3.5% per year. Today's modelled estimate of £268,000 is 11.7% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£421/sq ft) was about 35.2% above the typical sold price in the postcode. Most recent transfer: January 2020 at £240,000.