17 Cadogan Close, Beckenham, BR3 5XY

17 Cadogan Close is an end-of-terrace house in Beckenham (BR3 5XY). It has a recorded floor area of 114 m² (around 1227 sq ft), construction records dating it to 1967-1975 and council tax band C. At 114 m² this is the largest unit on EPC record across the building (30–114 m²). The building's EPC ratings span F to C, with this unit at the bottom. The latest certificate (August 2013) shows an F (score 34), near the bottom of the EPC scale. Earlier certificates rated it E (June 2011); the latest reading is one band lower. Between certificates, wall efficiency dropped from Good to Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to D (score 57), a 2-band jump. Main heating runs on electricity. The latest certificate is from August 2013, so improvements made since then won't be reflected.

Untraded for 28 years, with the last transfer in September 1998. At 114 m² the property is well over the postcode median (67 m² across 33 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 1997–1998, sale prices on this property compounded at 58.3% per year. Today's modelled estimate of £420,000 sits 127% above the 1998 sale of £185,000. On a £-per-square-foot basis, the last sale (£151/sq ft) was about 31.2% below the postcode norm.