67b, Aylesford Street, London, SW1V 3RY

67b is a detached house in London (SW1V 3RY). It has a recorded floor area of 18 m² (around 194 sq ft), construction records dating it to 1900-1929 and council tax band B. At 18 m² this is the smallest unit on EPC record across the building (18–79 m²). The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (November 2019) shows a D (score 64), on the cusp of jumping into the C band. Earlier certificates rated it C (November 2009); the latest reading is one band lower. Between certificates, window efficiency went from Poor to Average and lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Very Poor. The recommended improvements would push it to C (score 73).

Untraded for 20 years, with the last transfer in November 2006. Across 2003–2006, sale prices on this property compounded at 2.2% per year. Today's modelled estimate of £302,000 sits 123.7% above the 2006 sale of £135,000. On a £-per-square-foot basis, the last sale (£697/sq ft) was about 29.5% above the typical sold price in the postcode. At 18 m² it sits well below the postcode median (41 m² across 52 EPCs), making it one of the more compact homes locally.