Flat 5, 13 Grange Road, London, W4 4DB

Flat 5 is an end-of-terrace house in London (W4 4DB). It has a recorded floor area of 84 m² (around 906 sq ft), construction records dating it to 1900-1929 and council tax band E. At 84 m² this is the largest unit on EPC record across the building (37–84 m²). The building's EPC ratings span F to C, with this unit at the bottom. On EPC score it ranks last in the building (29 versus a best of 70). The latest certificate (November 2008) shows an F (score 29), near the bottom of the EPC scale. The recommended improvements would push it to E (score 48). The latest certificate is from November 2008, so improvements made since then won't be reflected.

Held since November 2005 — that's 21 years off the open market, well above the local norm. At 84 m² the property is well over the postcode median (64 m² across 9 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1998–2005, sale prices on this property compounded at 9.6% per year. Today's modelled estimate of £548,000 sits 82.7% above the 2005 sale of £299,950. On a £-per-square-foot basis, the last sale (£331/sq ft) was about 17.6% below the postcode norm.