Ashley Mansions, Flat 20, 254 Vauxhall Bridge Road, Westminster, London, SW1V 1BS

Ashley Mansions is a mid-terrace house in Westminster, London, London (SW1V 1BS). It has a recorded floor area of 58 m² (around 624 sq ft) and construction records dating it to before 1900. At 58 m² this is the smallest unit on EPC record across Ashley Mansions (58–76 m²). The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (March 2021) shows a D (score 57), a step below the typical UK home. When first surveyed in September 2009 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Good and lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good.

It hasn't traded since March 2004, a hold of 22 years that's notably long for the area. Across the public record there are 4 sales, relatively high churn for a single property. Across 1995–2004, sale prices on this property compounded at 15.7% per year. Today's modelled estimate of £557,000 sits 93.7% above the 2004 sale of £287,500. On a £-per-square-foot basis, the last sale (£461/sq ft) was about 25.5% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 70% of similar EPCs).