13b, Churchill Road, London, NW5 1AN

13b is a semi-detached house in London (NW5 1AN). It has a recorded floor area of 56 m² (around 603 sq ft) and construction records dating it to 1900-1929. At 56 m² this is the 2nd smallest of 4 units on EPC record in the building, where floor areas span 51–71 m². The building's EPC ratings span E to D, with this unit at the bottom. On EPC score it ranks last in the building (54 versus a best of 67). The latest certificate (April 2016) shows an E (score 54), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 68). The latest certificate is from April 2016, so improvements made since then won't be reflected.

Held since September 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £512,000 sits 96.9% above the 2009 sale of £260,000. At 56 m² it's 24.5% smaller than the typical home in the postcode (74 m² median across 28 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs). One historical planning record sits against the property in 2013.