9 Cardinal Bourne Street, Southwark, London, SE1 4EJ

9 Cardinal Bourne Street is a semi-detached house in Southwark, London, London (SE1 4EJ). It has a recorded floor area of 50 m² (around 538 sq ft), construction records dating it to 1950-1966 and council tax band A. At 50 m² this is the smallest unit on EPC record across the building (50–84 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 (53 versus a best of 79). The latest certificate (January 2024) shows an E (score 53), well below the UK norm with real room to improve. The rating has held steady at E across 3 certificates since July 2013.

Today's modelled estimate of £267,000 is 14.6% below the 2015 sale of £312,500, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£581/sq ft) was about 137.8% above the typical sold price in the postcode. At 50 m² it's 21.9% smaller than the typical home in the postcode (64 m² median across 8 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Last sold in June 2015, so it's been off the market for around 11 years.