9b, Riffel Road, London, NW2 4NY

9b is a mid-terrace house in London (NW2 4NY). It has a recorded floor area of 36 m² (around 388 sq ft), construction records dating it to 1900-1929 and council tax band D. At 36 m² this is the smallest unit on EPC record across the building (36–80 m²). The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (70 versus a worst of 50). The latest certificate (July 2015) shows a C (score 70). The latest certificate is from July 2015, so improvements made since then won't be reflected.

Held since September 2006 — that's 20 years off the open market, well above the local norm. Today's modelled estimate of £437,000 sits 74.8% above the 2006 sale of £250,000. On a £-per-square-foot basis, the last sale (£645/sq ft) was about 70.5% above the typical sold price in the postcode. At 36 m² it sits well below the postcode median (75 m² across 9 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 89% of similar EPCs). 4 planning records sit against the property, 4 approved, 0 refused. Past consents include subdivision, an extension and a loft conversion, meaningful when judging how the property has evolved.