10 Marlborough House, Courtlands, Sheen Road, Richmond, TW10 5AR

10 Marlborough House is a three-bedroom detached house in Richmond (TW10 5AR). It has a recorded floor area of 120 m² (around 1295 sq ft), construction records dating it to 1930-1949 and council tax band E. At 120 m² this is the largest unit on EPC record across the building (94–120 m²). The building's EPC ratings span F to C across 9 units on file. The latest certificate (August 2009) shows a D (score 58), a step below the typical UK home. The latest certificate is from August 2009, so improvements made since then won't be reflected.

Held since December 2007 — that's 18 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £669,000 sits 91.1% above the 2007 sale of £350,000. At 120 m² it's 22.7% larger than the typical home in the postcode (98 m² median across 8 EPCs).