Flat 1, 47 Belsize Park Gardens, London, NW3 4JL

Flat 1 is a semi-detached house in London (NW3 4JL). It has a recorded floor area of 116 m² (around 1252 sq ft), construction records dating it to before 1900 and council tax band F. At 116 m² this is the 7th smallest of 8 units on EPC record in the building, where floor areas span 51–134 m². The building's EPC ratings span E to B across 8 units on file. The latest certificate (April 2010) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 70). The latest certificate is from April 2010, so improvements made since then won't be reflected.

Held since April 1995 — that's 31 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. At 116 m² the property is well over the postcode median (72 m² across 25 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £1,147,000 sits 537.2% above the 1995 sale of £180,000. On a £-per-square-foot basis, the last sale (£144/sq ft) was about 77% below the postcode norm. One planning record on file: an extension approved in 2006. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved.