Flat 4, 12 Durham Street, Lambeth, London, SE11 5JA

Flat 4 is a two-bedroom detached house in Lambeth, London, London (SE11 5JA). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1930-1949 and council tax band D. At 72 m² this is the largest unit on EPC record across the building (45–72 m²). The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (56 versus a best of 72). The latest certificate (May 2023) shows a D (score 56), a step below the typical UK home. Earlier certificates rated it C (September 2010); the latest reading is one band lower. Between certificates, wall efficiency dropped from Good to Poor and roof efficiency dropped from Good to Very Poor.

It hasn't traded since July 2005, a hold of 21 years that's notably long for the area. Today's modelled estimate of £503,000 sits 86.3% above the 2005 sale of £270,000. On a £-per-square-foot basis, the last sale (£348/sq ft) was about 17.7% below the postcode norm. At 72 m² it's 20% larger than the typical home in the postcode (60 m² median across 5 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs).