12a, Rutland Court, Westminster, London, SW7 1BN

12a is a three-bedroom end-of-terrace house in Westminster, London, London (SW7 1BN). It has a recorded floor area of 162 m² (around 1744 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (September 2014) shows an E (score 41), well below the UK norm with real room to improve. Earlier certificates rated it D (June 2010); the latest reading is one band lower. Between certificates, window efficiency went from Very Poor to Average and lighting went from Poor to Average. The recommended improvements would push it to D (score 65). The latest certificate is from September 2014, so improvements made since then won't be reflected. At 162 m² this is the 4th smallest of 11 units on EPC record in the building, where floor areas span 87–302 m². The building's EPC ratings span F to C across 11 units on file.

Today's modelled estimate of £4,393,000 is 29.1% below the 2016 sale of £6,200,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£3,556/sq ft) was about 59.4% above the typical sold price in the postcode. At 162 m² it's 15.6% smaller than the typical home in the postcode (192 m² median across 10 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 3 planning records sit against the property, 2 approved, 1 refused. Past consents include new windows, meaningful when judging how the property has evolved. Last sold in April 2016, so it's been off the market for around 10 years.