84a, Onslow Gardens, Kensington And Chelsea, London, SW7 3BS

84a is a three-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW7 3BS). It has a recorded floor area of 215 m² (around 2314 sq ft) and construction records dating it to 1900-1929. At 215 m² this is the largest unit on EPC record across the building (66–215 m²). The building's EPC ratings span F to C, with this unit at the top. The latest certificate (December 2024) shows a C (score 73). When first surveyed in June 2010 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Very Poor. The recommended improvements would push it to B (score 82).

It hasn't traded since December 2003, a hold of 22 years that's notably long for the area. At 215 m² the property is well over the postcode median (66 m² across 26 EPCs), placing it in the larger end of the local stock. Across 2002–2003, sale prices on this property compounded at -44.9% per year. Today's modelled estimate of £2,911,000 sits 485.1% above the 2003 sale of £497,500. On a £-per-square-foot basis, the last sale (£215/sq ft) was about 76.4% below the postcode norm.