Flat 3, 337 Chiswick High Road, London, W4 4HS

Flat 3 is a one-bedroom mid-terrace house in London (W4 4HS). It has a recorded floor area of 39 m² (around 420 sq ft), construction records dating it to 1900-1929 and council tax band C. At 39 m² this is the smallest unit on EPC record across the building (39–56 m²). The building's EPC ratings span F to C, with this unit at the top. On EPC score it ranks first in the building (73 versus a worst of 31). Period features are noted in the property record. The latest certificate (December 2016) shows a C (score 73). The recommended improvements would push it to B (score 81).

Held since June 1998 — that's 28 years off the open market, well above the local norm. 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 £371,000 sits 336.5% above the 1998 sale of £85,000. On a £-per-square-foot basis, the last sale (£202/sq ft) was about 60.9% below the postcode norm. At 39 m² it's 23.5% smaller than the typical home in the postcode (51 m² median across 32 EPCs).