18 Onslow Mews West, Kensington And Chelsea, London, SW7 3AF

18 Onslow Mews West is a three-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW7 3AF). It has a recorded floor area of 245 m² (around 2637 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (August 2018) shows a C (score 72). When first surveyed in February 2010 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Poor to Average, window efficiency went from Very Poor to Poor and lighting went from Very Poor to Good; while wall efficiency dropped from Good to Very Poor and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 83).

Held since October 2000 — that's 26 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 245 m² the property is well over the postcode median (109 m² across 11 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £4,206,000 sits 3360.4% above the 2000 sale of £121,545. On a £-per-square-foot basis, the last sale (£46/sq ft) was about 87.9% below the postcode norm. 3 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension, a basement excavation, change of use to residential and a garage conversion, meaningful when judging how the property has evolved.