Osbourne House, Flat 9, 10 St Martins Lane, Beckenham, BR3 3XS

Osbourne House is a two-bedroom mid-terrace house in Beckenham (BR3 3XS). It has a recorded floor area of 119 m² (around 1278 sq ft), construction records dating it to 1996-2002 and council tax band G. The latest certificate (March 2009) returns a B (score 82), comfortably above the UK average. The latest certificate is from March 2009, so improvements made since then won't be reflected. At 119 m² this is the 2nd smallest of 8 units on EPC record in Osbourne House, where floor areas span 86–180 m². The building's EPC ratings span C to B, with this unit at the top. On EPC score it ranks first in the building (82 versus a worst of 77). Other recorded features include a balcony.

Held since October 2001 — that's 25 years off the open market, well above the local norm. Today's modelled estimate of £678,000 sits 108.6% above the 2001 sale of £325,000. On a £-per-square-foot basis, the last sale (£254/sq ft) was about 24.9% below the postcode norm. At 119 m² it's 20.3% smaller than the typical home in the postcode (149 m² median across 22 EPCs). Its energy rating outperforms most of the postcode (better than 73% of similar EPCs).