Marconi House, Flat 2, Knee Hill, Bexley, London, SE2 0AQ

Marconi House is a semi-detached house in Bexley, London, London (SE2 0AQ). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1950-1966 and council tax band B. At 45 m² this is the smallest unit on EPC record across Marconi House (45–108 m²). The building's EPC ratings span D to C, with this unit at the top. On EPC score it ranks first in the building (70 versus a worst of 56). The latest certificate (October 2014) shows a C (score 70). The latest certificate is from October 2014, so improvements made since then won't be reflected.

Held since May 2005 — that's 21 years off the open market, well above the local norm. At 45 m² it sits well below the postcode median (68 m² across 4 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the top 10% of properties in this postcode. Across 1999–2005, sale prices on this property compounded at 17.3% per year. Today's modelled estimate of £253,000 sits 87.4% above the 2005 sale of £134,995.