Flat 3, 42 Streatham Common North, London, SW16 3HS

Flat 3 is a one-bedroom semi-detached house in London (SW16 3HS). It has a recorded floor area of 63 m² (around 678 sq ft) and construction records dating it to before 1900. At 63 m² this is the smallest unit on EPC record across the building (63–128 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 (57 versus a best of 73). The latest certificate (March 2022) shows a D (score 57), a step below the typical UK home. Earlier certificates rated it C (March 2012); the latest reading is one band lower. Between certificates, wall efficiency dropped from Good to Very Poor and roof efficiency dropped from Average to Very Poor.

It hasn't traded since July 1999, a hold of 27 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £277,000 sits 301.4% above the 1999 sale of £69,000. On a £-per-square-foot basis, the last sale (£102/sq ft) was about 61% below the postcode norm. At 63 m² it sits well below the postcode median (108 m² across 12 EPCs), making it one of the more compact homes locally.