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

9 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 109 m² (around 1173 sq ft), construction records dating it to 1983-1990 and council tax band H. The latest certificate (October 2023) shows a C (score 73). When first surveyed in November 2009 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Average, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would push it to B (score 86). Other recorded features include a balcony. The home occupies a cul-de-sac position.

Across 1996–2015, sale prices on this property compounded at 12.6% per year. Today's modelled estimate of £2,437,000 is 21.4% below the 2015 sale of £3,100,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£2,642/sq ft) was about 593.9% above the typical sold price in the postcode. On the market in October 2015 and unlisted since — roughly 11 years. Across the public record there are 5 sales, relatively high churn for a single property. 4 planning records sit against the property, 2 approved, 2 refused. Past consents include a basement excavation, meaningful when judging how the property has evolved. At 109 m² it's 25.9% smaller than the typical home in the postcode (147 m² median across 11 EPCs).