Flat 4, 1 Lambolle Road, London, NW3 4HS

Flat 4 is a detached house in London (NW3 4HS). It has a recorded floor area of 130 m² (around 1399 sq ft), construction records dating it to before 1900 and council tax band G. At 130 m² this is the 3rd smallest of 5 units on EPC record in the building, where floor areas span 36–164 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 (50 versus a best of 77). The latest certificate (April 2015) shows an E (score 50), well below the UK norm with real room to improve. Earlier certificates rated it D (April 2013); the latest reading is one band lower. Between certificates, wall efficiency went from Very Poor to Poor; while lighting dropped from Average to Very Poor. The recommended improvements would push it to D (score 68). The latest certificate is from April 2015, so improvements made since then won't be reflected.

Held since July 2004 — that's 22 years off the open market, well above the local norm. At 130 m² the property is well over the postcode median (69 m² across 52 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 85% of similar EPCs). Today's modelled estimate of £1,520,000 sits 169% above the 2004 sale of £565,000. On a £-per-square-foot basis, the last sale (£404/sq ft) was about 39.5% below the postcode norm. One planning record on file: an extension approved in 2008. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved.