15b, Buckland Crescent, London, NW3 5DH

15b is a semi-detached house in London (NW3 5DH). It has a recorded floor area of 252 m² (around 2713 sq ft) and construction records dating it to before 1900. At 252 m² this is the largest unit on EPC record across the building (12–252 m²). The building's EPC ratings span E to B across 36 units on file. The latest certificate (May 2017) shows a D (score 56), a step below the typical UK home. When first surveyed in August 2009 the rating was F, the property has climbed 2 bands since. Between certificates, lighting went from Very Poor to Very Good and main heating went from Poor to Good. The recommended improvements would push it to C (score 74).

Held since July 2008 — that's 18 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. At 252 m² the property is well over the postcode median (91 m² across 56 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £2,256,000 sits 182% above the 2008 sale of £800,000. On a £-per-square-foot basis, the last sale (£295/sq ft) was about 40.4% below the postcode norm. One historical planning record sits against the property in 2014.