23 Cadogan Close, Beckenham, BR3 5XY

23 Cadogan Close is an end-of-terrace house in Beckenham (BR3 5XY). It has a recorded floor area of 71 m² (around 764 sq ft), construction records dating it to 1967-1975 and council tax band C. At 71 m² this is the 27th smallest of 34 units on EPC record in the building, where floor areas span 30–114 m². The building's EPC ratings span F to C across 34 units on file. The latest certificate (June 2014) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since August 2013. The recommended improvements would push it to C (score 77). The latest certificate is from June 2014, so improvements made since then won't be reflected.

Held since April 1997 — that's 29 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £308,000 sits 417.6% above the 1997 sale of £59,500. On a £-per-square-foot basis, the last sale (£78/sq ft) was about 63.6% below the postcode norm.