Osbourne House, Flat 11, 10 St Martins Lane, Beckenham, BR3 3XS

Osbourne House is a three-bedroom mid-terrace house in Beckenham (BR3 3XS). It has a recorded floor area of 157 m² (around 1690 sq ft), construction records dating it to 1996-2002 and council tax band G. At 157 m² this is the 6th 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 bottom. Other recorded features include a balcony. The latest certificate (October 2025) shows a C (score 78), near the top of the C band. Earlier certificates rated it B (March 2014); the latest reading is one band lower. Between certificates, roof efficiency dropped from Good to Average and window efficiency dropped from Good to Poor.

It hasn't traded since July 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 2001–2007, sale prices on this property compounded at 7.9% per year. Today's modelled estimate of £941,000 is 34.4% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£414/sq ft) was about 22.8% above the typical sold price in the postcode.