3 Belton House, Belton Road, London, NW2 5NY

3 Belton House is a semi-detached house in London (NW2 5NY). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to 1900-1929 and council tax band C. At 68 m² this is the smallest unit on EPC record across the building (68–68 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (45 versus a best of 69). The latest certificate (November 2015) shows an E (score 45), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 58). The latest certificate is from November 2015, so improvements made since then won't be reflected.

Held since June 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £367,000 sits 66.8% above the 2007 sale of £220,000. On a £-per-square-foot basis, the last sale (£301/sq ft) was about 18.8% above the typical sold price in the postcode.