21 Wiltshire Close, Kensington And Chelsea, London, SW3 2NS

21 Wiltshire Close is a two-bedroom end-of-terrace house in Kensington And Chelsea, London, London (SW3 2NS). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to 1950-1966 and council tax band D. At 51 m² this is the 2nd smallest of 31 units on EPC record in the building, where floor areas span 46–91 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (August 2020) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2010. Between certificates, wall efficiency went from Poor to Average and lighting went from Good to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 76).

At 51 m² it's 16.4% smaller than the typical home in the postcode (61 m² median across 30 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). On a £-per-square-foot basis, the last sale (£1,078/sq ft) was about 65% above the typical sold price in the postcode. Last sale on file: £592,000 in April 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.