Ben Jonson House, Flat 521, Barbican, City Of London, London, EC2Y 8NH

Ben Jonson House is a one-bedroom mid-terrace house in City Of London, London, London (EC2Y 8NH). It has a recorded floor area of 36 m² (around 388 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (May 2012) shows an E (score 54), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since September 2009. Between certificates, window efficiency went from Average to Very Good; while hot-water efficiency dropped from Good to Average and lighting dropped from Good to Average. The recommended improvements would push it to D (score 56). Main heating runs on electricity. The latest certificate is from May 2012, so improvements made since then won't be reflected. At 36 m² this is the 14th smallest of 36 units on EPC record in Ben Jonson House, where floor areas span 29–118 m². The building's EPC ratings span G to C across 36 units on file.

Sale prices here have outpaced London HPI: 7.8% per year against 0% for the wider region. Today's modelled estimate of £509,000 is 10.7% below the 2018 sale of £570,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£1,471/sq ft) was about 225% above the typical sold price in the postcode. At 36 m² it sits well below the postcode median (90 m² across 35 EPCs), making it one of the more compact homes locally. Most recent transfer: October 2018 at £570,000. Across the public record there are 4 sales, relatively high churn for a single property.