1b, Warwick Square Mews, Westminster, London, SW1V 2EL

1b is a one-bedroom end-of-terrace house in Westminster, London, London (SW1V 2EL). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to before 1900 and council tax band G. At 55 m² this is the 2nd smallest of 11 units on EPC record in the building, where floor areas span 36–258 m². The building's EPC ratings span E to D, with this unit at the bottom. Other recorded features include a balcony. The latest certificate (December 2009) shows an E (score 52), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since December 2009. Between certificates, lighting dropped from Average to Very Poor. The recommended improvements would push it to D (score 60). The latest certificate is from December 2009, so improvements made since then won't be reflected.

One planning record on file: new windows approved in 2010. Past consents include new windows, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£1,309/sq ft) was about 166.5% above the typical sold price in the postcode. At 55 m² it's 21.4% smaller than the typical home in the postcode (70 m² median across 13 EPCs). Last sale on file: £775,000 in November 2018.