11 Lansdowne House, Lansdowne Road, Kensington And Chelsea, London, W11 3LP

11 Lansdowne House is a detached house in Kensington And Chelsea, London, London (W11 3LP). It has a recorded floor area of 425 m² (around 4575 sq ft) and construction records dating it to 1930-1949. At 425 m² this is the 10th smallest of 11 units on EPC record in the building, where floor areas span 82–468 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (May 2014) shows an E (score 53), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 70), a 2-band jump. The latest certificate is from May 2014, so improvements made since then won't be reflected.

Held since March 1996 — that's 30 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. At 425 m² the property is well over the postcode median (132 m² across 10 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). Today's modelled estimate of £6,505,000 sits 544.1% above the 1996 sale of £1,010,000. On a £-per-square-foot basis, the last sale (£221/sq ft) was about 77.9% below the postcode norm.