Flat 4, 86 Blackfriars Road, London, SE1 8HA

Flat 4 is a mid-terrace house in London (SE1 8HA). It has a recorded floor area of 54 m² (around 581 sq ft) and construction records dating it to before 1900. At 54 m² this is the 3rd smallest of 5 units on EPC record in the building, where floor areas span 42–106 m². The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (September 2021) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2011. Between certificates, hot-water efficiency dropped from Good to Poor and main heating dropped from Good to Average. The recommended improvements would push it to C (score 77). Main heating runs on electricity.

Untraded for 19 years, with the last transfer in May 2007. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 2006–2007, sale prices on this property compounded at 23.6% per year. Today's modelled estimate of £579,000 sits 65.4% above the 2007 sale of £350,000. On a £-per-square-foot basis, the last sale (£602/sq ft) was about 22.8% above the typical sold price in the postcode. At 54 m² it's 17.6% smaller than the typical home in the postcode (66 m² median across 37 EPCs).