17 Belgrave Mews West, Westminster, London, SW1X 8HT

17 Belgrave Mews West is a mid-terrace house in Westminster, London, London (SW1X 8HT). It has a recorded floor area of 163 m² (around 1755 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (November 2013) shows an E (score 45), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since October 2009. Between certificates, roof efficiency went from Average to Good. The recommended improvements would lift it to B (score 81), a 3-band jump. The latest certificate is from November 2013, so improvements made since then won't be reflected.

Today's modelled estimate of £3,191,000 is 78.7% below the 2013 sale of £15,000,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£8,549/sq ft) was about 1474.2% above the typical sold price in the postcode. 2 planning records sit against the property, 1 approved, 0 refused, 1 pending. Past consents include an extension and a basement excavation, meaningful when judging how the property has evolved. An active application for an extension is awaiting a decision. At 163 m² it sits well below the postcode median (265 m² across 4 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. On the market in October 2013 and unlisted since — roughly 13 years.