Flat 6, 4 Arundel Gardens, London, W11 2LA

Flat 6 is a one-bedroom mid-terrace house in London (W11 2LA). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to before 1900 and council tax band F. At 70 m² this is the 5th smallest of 7 units on EPC record in the building, where floor areas span 33–111 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (43 versus a best of 73). Other recorded features include a balcony. The latest certificate (November 2019) shows an E (score 43), well below the UK norm with real room to improve. The rating has held steady at E across 4 certificates since October 2016. Between certificates, wall efficiency went from Very Poor to Poor; while main heating dropped from Good to Average. The recommended improvements would lift it to C (score 74), a 2-band jump. Main heating runs on electricity.

Sale prices here have outpaced London HPI: 7.4% per year against 0% for the wider region. Today's modelled estimate of £1,082,000 is 10.9% below the 2019 sale of £1,215,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£1,613/sq ft) was about 151.7% above the typical sold price in the postcode. Most recent transfer: September 2019 at £1,215,000. Across the public record there are 4 sales, relatively high churn for a single property. At 70 m² it's 19.7% larger than the typical home in the postcode (59 m² median across 34 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 88% of similar EPCs).